List of cross-generational references: Difference between revisions

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{{fan speculation}}
{{fan speculation}}
The six [[generation]]s of [[Pokémon games]], taking place in the same {{pkmn|world|universe}}, have had multiple references to each other. Not only do the games reference their same-generation counterparts (with the {{player}}'s default name being the version played and the [[rival]]'s being the counterpart version in the first two generations), but games released later in the series typically will feature references to events of past generations.
<div style="clear: right; float:right">__TOC__</div>
The nine [[generation]]s of [[Pokémon games]], taking place in the same {{pkmn|world|universe}}, have had multiple references to each other. Not only do the games reference their same-generation counterparts (with the {{player}}'s default name being the version played and the [[rival]]'s being the counterpart version in the first two generations), but games released later in the series typically will feature references to events of past generations.


This does not include Pokémon. While Pokémon released in previous generations will always appear, they are not a reference to the generation itself.
This does not include Pokémon. While Pokémon released in previous generations will always appear, they are not a reference to the generation itself.
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===Generation II===
===Generation II===
====To Generation I====
====To Generation I====
* Not only is the [[Kanto]] region a playable area during the games, but several of the events of [[Generation I]] are spoken of as having happened three years previous. Many characters also reappear because of this, though some of them undergo design changes.
* Not only is the [[Kanto]] region a playable area during the games, but several of the events of [[Generation I]] are spoken of as having happened three years prior. Many characters also reappear because of this, though some of them undergo design changes.
* {{ga|Red}}, the player character of the first games, is found training in [[Mt. Silver]] and can be battled.
* {{ga|Red}}, the [[player character]] of the first games, is found training in [[Mt. Silver]] and can be battled.
* {{ga|Blue}}, the rival character of the first games, has become the [[Gym Leader]] of [[Viridian City]]. His team is based on the Pokémon he used in the final battle in {{game|Red and Blue|s}}.
* {{ga|Blue}}, the rival character of the first games, has become the [[Gym Leader]] of [[Viridian City]]. His team is based on the Pokémon he used in the final battle in {{game|Red and Blue|s}}.
* A man in the [[Violet City]] Pokémon Center states that the former [[Team Rocket]] was broken up by a "{{ga|Red|young kid}}."
* A man in the [[Violet City]] Pokémon Center states that the former [[Team Rocket]] was broken up by a "{{ga|Red|young kid}}."
* The parents of the Copycat in [[Saffron City]] mention that her Clefairy Doll was given to her by {{ga|Red|a boy}} three years before.
* The parents of the {{OBP|Copycat|character}} in [[Saffron City]] mention that her Clefairy Doll was given to her by {{ga|Red|a boy}} three years before.
* The [[Berserk Gene]], a held item, is found near the former entrance of the now-collapsed [[Cerulean Cave]], where {{p|Mewtwo}} once hid.
* The [[Berserk Gene]], a held item, is found near the former entrance of the now-collapsed Cerulean Cave, where {{p|Mewtwo}} once hid.
* There is a [[Pokémon doll]] of a {{m|surf}}ing {{p|Pikachu}} available to decorate the room, which references the special minigame in {{game|Yellow}}.
* There is a [[Pokémon doll]] of a [[Surfing Pikachu]] available to decorate the room, which references the [[Pikachu's Beach]] minigame in {{game|Yellow}}.
* A man in [[Cerulean City]] says there used to be [[Cerulean Cave|a cave near the city with powerful Pokémon]].
* A man in [[Cerulean City]] says there used to be [[Cerulean Cave|a cave near the city with powerful Pokémon]].
* If the player checks the poster in the [[Rocket Game Corner]], the player will be informed that there's nothing there, referring to the secret switch under the poster in Generation I.
* If the player checks the poster in the [[Celadon Game Corner]], the player will be informed that there's nothing there, referring to the secret switch under the poster in Generation I.
* The master of the [[Saffron City]] [[Fighting Dojo]], [[Kiyo]], can be found and battled in Mt. Mortar. Like in Generation I, he gives the player a {{p|Tyrogue|Fighting-type Pokémon}} upon defeating him.
* The master of the Saffron City [[Fighting Dojo]], [[Kiyo]], can be found and battled in [[Mt. Mortar]]. Like [[Koichi]] in Generation I, he gives the player {{p|Tyrogue|a Fighting-type Pokémon}} upon defeating him.
* In Celadon City restaurant, a woman says that no one will give player [[Coin Case]] here and (s)he should look in Johto. A man in the same place gives Coin Case in Generation I.
* In a [[Celadon City]] restaurant, a woman says that no one will give the player a [[Coin Case]] here and that they should look in [[Johto]]. A man in the same place gives a Coin Case in Generation I.


===Generation III===
===Generation III===
====To Generation I====
====To Generation I====
* [[Brawly]] is said to have once trained alongside [[Bruno]], who is a member of [[Kanto]]'s [[Elite Four]].
* [[Brawly]] is said to have once trained alongside [[Bruno]], who is a member of [[Kanto]]'s [[Elite Four]]. Also, both of them are {{type|Fighting}} Pokémon users.
* The Oceanic Museum in [[Slateport City]] has two water samples, one of which is from Kanto (though this reference is removed in ''Emerald''). Its background music theme is also an arrangement of the S.S. Anne theme.
* The [[Oceanic Museum]] in [[Slateport City]] has two water samples on the top floor, one of which is from Kanto (though this reference is removed in Emerald). Its background music theme is also an arrangement of the [[S.S. Anne]] theme.
** There is also a miniature scale model of the [[S.S. Anne]] on the top floor of the Oceanic Museum.
* In [[Lanette]]'s house, there is a computer displaying e-mails from [[Bill]] about the [[Pokémon Storage System]].
* On [[Faraway Island]], a series of smudged messages, which may have been left by [[Mr. Fuji]], appear on a [[signpost]].
* On [[Faraway Island]], a series of smudged messages, which may have been left by [[Mr. Fuji]], appear on a [[signpost]].
* A boy in [[Lilycove City]] says that he and his family came from the [[Kanto]] region before he asks if there are any Pokémon found only in the [[Hoenn]] region.
* A boy in [[Lilycove City]] says that he and his family came from the Kanto region before he asks if there are any Pokémon found only in this area.
* In {{ka|Victory Road}}, there is a small crater where {{p|Moltres}} used to be.
* In the {{ka|Victory Road}} in Kanto, there is a small crater where {{p|Moltres}} used to be.


====To Generation II====
====To Generation II====
* In {{game|Ruby and Sapphire|s}}, the player-controlled character of {{game2|Ruby|Sapphire|Emerald}} is said to have moved at the beginning of the game with his/her family from the [[Johto]] region, the main setting of the Generation II games. In {{game|Emerald}} the character who said this instead states that the player character's family moved there from a faraway place.
* In {{game|Ruby and Sapphire|s}}, the [[player character]] is said to have moved at the beginning of the game with their family from the [[Johto]] region, the main setting of the Generation II games. In {{game|Emerald}}, the character who said this instead states that the player character's family moved there from a faraway place.
* The [[Pokémon Ruby and Sapphire beta|beta versions of Pokémon Ruby and Sapphire]] contained remastered versions of the themes played on [[Route]]s [[Johto Route 38|38]] and [[Johto Route 39|39]], [[Team Rocket]] encounter, [[Legendary beasts]]' battle, and [[Saffron City]].
* The [[Pokémon Ruby and Sapphire beta|internal data of Pokémon Ruby and Sapphire]] contains remastered versions of the themes played on [[Route]]s [[Johto Route 38|38]] and [[Johto Route 39|39]], Goldenrod's Radio Tower Takeover, [[Legendary beasts]]' battle, and [[Saffron City]].
* The Oceanic Museum in [[Slateport City]] has two water samples, one of which is from Johto (though this reference is removed in ''Emerald'').
* The [[Oceanic Museum]] in [[Slateport City]] has two water samples, one of which is from Johto (though this reference is removed in Emerald).
* A man in [[Mt. Moon]] says that [[Brock]] sometimes helps excavate [[Fossil]]s there. This explains how he acquires the {{p|Kabutops}} and {{p|Omastar}} which he uses in the second generation of games.
* A man in [[Mt. Moon]] says that [[Brock]] sometimes helps excavate [[Fossil]]s there. This explains how he acquires the {{p|Kabutops}} and {{p|Omastar}} which he uses in Generation II.
* At the [[Cerulean Cape]], a dame says [[Misty]] has high hopes about the location, which is known as a famous dating spot. In the second generation of games, she is first encountered there with an unknown male character.
* At the [[Kanto Route 25|Cerulean Cape]], a dame says [[Misty]] has high hopes about the location, which is known as a famous dating spot. In the Generation II games, she is first encountered there with an unknown male character.
* [[Janine]], [[Koga]]'s daughter and future [[Gym Leader|Leader]] of [[Fuchsia Gym]], appears in [[Fuchsia City]], and tells the player that she is training to use {{t|Poison}} Pokémon like her father. She is misnamed as Charine in the English translation of FireRed and LeafGreen, however.
* [[Janine]], [[Koga]]'s daughter and future [[Gym Leader|Leader]] of [[Fuchsia Gym]], appears in [[Fuchsia City]], and tells the player that she is training to use {{t|Poison}} Pokémon like her father. She is misnamed as Charine in the English translation of Pokémon FireRed and LeafGreen, however.
* The branch of [[Team Rocket]] in the [[Sevii Islands]] seems to be the same branch which attempted to revive Team Rocket during Generation II, with plans to use magnetic waves to evolve Pokémon. Their lead scientist also tells that [[Giovanni]]'s child has red hair, a reference to {{ga|Silver}}.
* The branch of Team Rocket in the [[Sevii Islands]] seems to be the same branch which attempted to revive Team Rocket during Generation II, with plans to use magnetic waves to evolve Pokémon. {{tc|Scientist}} [[Gideon]] also claims that [[Giovanni]]'s child has red hair, a reference to {{ga|Silver}}.
* One of [[Professor Oak]]'s assistants will state that he is to get a [[Professor Oak's Pokémon Talk|radio show]] sometime in the near future.
* One of [[Professor Oak]]'s assistants will state that he is to get a [[Professor Oak's Pokémon Talk|radio show]] sometime in the near future.
* [[Celio]] mentions that some members of [[Bill]]'s family live in [[Goldenrod City]].
* [[Celio]] mentions that some members of [[Bill]]'s family live in [[Goldenrod City]].
* A woman on [[Boon Island]] in [[Bruno]]'s section of the [[Fame Checker]] mentions the [[RageCandyBar]].
* A woman on [[Two Island]] in [[Bruno]]'s section of the [[Fame Checker]] mentions the [[Rage Candy Bar|RageCandyBar]].
* A kid in [[Indigo Plateau]] in [[Lance]]'s section of the [[Fame Checker]] says he has a [[Clair|cousin who is a Gym Leader]] [[Blackthorn City|somewhere far away]].
* A child in [[Indigo Plateau]] in [[Lance]]'s section of the [[Fame Checker]] says he has a [[Clair|cousin who is a Gym Leader]] [[Blackthorn City|somewhere far away]].
* [[Whitney]], [[Jasmine]] and [[Pryce]] lookalikes appear as audience members in {{pkmn|Contest}}s.
* [[Whitney]], [[Jasmine]] and [[Pryce]] lookalikes appear as audience members in [[Pokémon Contest]]s.
* The man who digs [[Three Isle Path]] and gives the player a Nugget says that he'd like to buy a house in [[Kanto]]. He likely is the same person who gives away a Nugget in [[Generation II]] in his house on {{rt|2|Kanto}}.
* The man who digs [[Three Isle Path]] and gives the player a [[Nugget]] says that he'd like to buy a house in [[Kanto]]. He may be the same person who gives away a Nugget in Generation II in his house on {{rt|2|Kanto}}.
* The themes used on the [[Sevii Islands]] are remastered versions of the routes around [[Mahogany Town]] as well as remastered versions of {{ci|Violet}}/[[Olivine City]] and [[Azalea Town]]/[[Blackthorn City]].
* The themes used on the [[Sevii Islands]] are remastered versions of the routes around [[Mahogany Town]] as well as remastered versions of {{ci|Violet}}/[[Olivine City]] and [[Azalea Town]]/[[Blackthorn City]].
* In Mt. Battle, there is an {{p|Abra}} that will {{m|Teleport}} players to the entrance. In the Generation II games, the player can use an Abra at [[Indigo Plateau]] to Teleport [[New Bark Town|home]].


===Generation IV===
===Generation IV===
====To Generation I====
====To Generation I====
* [[Professor Rowan]] is said to have developed the [[List of Pokémon by Sinnoh Pokédex number|Sinnoh Pokédex]] with help from [[Professor Oak|a Pokémon Professor from Kanto]].
* [[Professor Rowan]] is said to have developed the [[List of Pokémon by Sinnoh Pokédex number|Sinnoh Pokédex]] with help from [[Professor Oak|a Pokémon Professor from Kanto]].
* Professor Oak himself comes to [[Sinnoh]] to give the player the [[National Pokédex]], and can always be found in a house in [[Eterna City]] thereafter. He gives the player an {{DL|Evolution-inducing held item|Up-Grade}}, which was sent to Oak by his acquaintance from [[Kanto]].
* Professor Oak himself comes to [[Sinnoh]] to give the {{player}} the [[National Pokédex]], and can always be found in a house in [[Eterna City]] thereafter. He gives the player an [[Upgrade|Up-Grade]], which was sent to Oak by his acquaintance from [[Kanto]].
* In the [[gate]] east of [[Canalave City]] is a guard who complains that he is thirsty, like the guards in Kanto who will allow the {{player}} to enter [[Saffron City]] if they are brought a drink. Unlike those guards, however, this one does not do anything if brought a drink.
* In the [[gate]] east of [[Canalave City]] is a guard who complains that he is thirsty, like the guards in Kanto who will allow the player to enter [[Saffron City]] if they are brought a drink. Unlike those guards, however, this one does not do anything if brought a drink.
* One of the [[Elite Four]], [[Bertha]], shares a similar name (in Japanese and English) and design to [[Agatha]]. It is possible they are related, or that Bertha was at least modeled after Agatha.
* One of the [[Elite Four]], [[Bertha]], shares a similar name (in Japanese and English) and design to [[Agatha]]. It is possible they are related, or that Bertha was at least modeled after Agatha.
* {{tc|Black Belt}} Eddie from {{si|Victory Road}} mentions that he trained in [[Fighting Dojo]] at {{ci|Saffron}}.
* {{tc|Black Belt}} Eddie from {{si|Victory Road}} mentions that he trained at the [[Fighting Dojo]] in Saffron City.
* In [[Amity Square]], some Pokémon may be let out of their [[Poké Ball]] to follow their Trainer around. One of the few available is {{p|Pikachu}}, which did the same (however, throughout the game) in {{game|Yellow}}.
* In [[Amity Square]], some Pokémon may be let out of their [[Poké Ball]]s to follow their {{pkmn|Trainer}} around. One of the few available is {{p|Pikachu}}, which did the same (however, throughout the game) in {{game|Yellow}}.
* [[Bebe]]'s buddy [[Bill]] is mentioned to have developed the basic storage system.
* [[Bebe]]'s friend [[Bill]] is mentioned to have developed the basic storage system.
* Part of the Veilstone Game Corner music is a techno remix of the Rocket Game Corner music.
* Part of the [[Veilstone Game Corner]] music theme is a techno remix of the Rocket Game Corner music theme.
* One of {{ga|Lucas}}'s alternate names was Ash in the English versions of {{game|Diamond and Pearl|s}}. This is one of the default names of {{ga|Red}} in the games {{game2|Red|Blue|Yellow}}, {{2v2|FireRed|LeafGreen}}. It may even be a reference to the {{pkmn|anime}}'s [[Ash Ketchum|main character]].
* One of {{ga|Lucas}}'s alternate names was Ash in the English versions of {{game|Diamond and Pearl|s}}. This is one of the default names of {{ga|Red}} in the games {{5v2|Red|Blue|Yellow|FireRed|LeafGreen}}. It may even be a reference to the {{pkmn|anime}}'s first [[Ash Ketchum|main character]].
[[File:Nostalgic Wallpaper.png|thumb|Wallpaper]]
[[File:Nostalgic Wallpaper.png|thumb|The wallpaper]]
* As a direct tribute to the original games, one of the wallpapers has been designed to resemble the design of the [[route]]s of the first games, complete with the graphics and sprites when the games are played on the [[Game Boy]]. The wallpaper showcases typical features like both types of fences, low and high [[Tall grass|grass]], normal ground, a [[sign]] and a house.
* As a direct tribute to the original games, one of the wallpapers has been designed to resemble the design of the [[route]]s of the first games, complete with the graphics and sprites when the games are played on the [[Game Boy]]. The wallpaper showcases typical features like both types of fences, low and high [[Tall grass|grass]], normal ground, a [[signpost]] and a house.
* When visiting the [[Villa]], [[Roark]] wonders if he could make the [[Underground]] extend to Kanto and [[Johto]].
* As {{game|HeartGold and SoulSilver|s}} are remakes of {{game|Gold and Silver|s}}, the references present in the original games to Generation I return.
* As {{game|HeartGold and SoulSilver|s}} are remakes of {{game|Gold and Silver|s}}, the references present in the original games to Generation I return.
* During a special {{p|Celebi}} event, the character will, in fact, travel in time back to shortly after {{ga|Red}} has defeated [[Giovanni]]. Giovanni tells his {{ga|Silver|son}} that he has decided to disband [[Team Rocket]]. Afterwards, he will run towards the [[Johto]] region and is found in a cave. When the player has defeated him, he will make a remark that the player reminds him of the boy that made him disband the team in the first place.
* During a special {{p|Celebi}} event, the player will, in fact, travel in time back to shortly after Red has defeated [[Giovanni]]. Giovanni tells his {{ga|Silver|son}} that he has decided to disband [[Team Rocket]]. Afterwards, he will run towards the Johto region and is found in a cave. When the player defeats him, he will make a remark that the player reminds him of {{ga|Red|the boy that made him disband}} the team in the first place.
* In HeartGold and SoulSilver, a man mentions that Professor Oak once said there were 150 Pokémon, the amount known during Generation I, although there are now over 600 (which appears to imply that all the games, or at least the remakes, take place at the same time as Generation IV).
* In {{game|HeartGold and SoulSilver|s}}, a man mentions that [[Professor Oak]] once said there were 150 Pokémon, the amount known during Generation I, although there are now over 400 (this implies that the [[Johto]] games, or at least their [[remake]]s, take place at the same time as the [[Sinnoh]] games).


====To Generation II====
====To Generation II====
* A news report of a [[red Gyarados]] begins {{game|Diamond and Pearl|s}}. The cameraman who filmed the documentary appears at the [[Survival Area]].
* A news report of a [[red Gyarados]] begins {{game|Diamond and Pearl|s}}. The cameraman who filmed the documentary appears at the [[Survival Area]].
** In {{v2|Platinum}}, the game instead begins with a report about Professor Rowan. However, the cameraman from the red Gyarados report is seen blocking the entrance to [[Lake Valor]], hoping to get a shot of the {{p|Azelf|legendary Pokémon}} said to live there.
** In {{game|Platinum}}, the game instead begins with a report about Professor Rowan. However, the cameraman from the red Gyarados report is seen blocking the entrance to [[Lake Valor]], hoping to get a shot of the {{p|Azelf|Legendary Pokémon}} said to live there.
* A man, who gives the player a {{p|Happiny}} {{pkmn|Egg}} in {{2v2|Diamond|Pearl}}, says that [[Professor Elm]] announced that Eggs kept [[party|with a Trainer]] will eventually hatch.
* A man, who gives the {{player}} a {{p|Happiny}} {{pkmn|Egg}} in {{game|Diamond and Pearl|s}}, says that [[Professor Elm]] announced that Eggs kept [[party|with a Trainer]] will eventually hatch.
* [[Jasmine]], one of Johto's [[Gym Leader]]s, appears to give the player {{HM|07|Waterfall}} and participates in Sinnoh's {{pkmn|Super Contest}}s.
* [[Jasmine]], one of [[Johto]]'s [[Gym Leader]]s, appears to give the player {{HM|07|Waterfall}} and participates in [[Sinnoh]]'s [[Pokémon Super Contest]]s.
* A man in [[Valor Lakefront]] states that he would like to see a {{p|Lugia|silver-colored Pokémon}} that resides in the [[Whirl Islands]], a {{p|Ho-Oh|rainbow-colored Pokémon}} that resides in the [[Bell Tower|Tin Tower]], and {{p|Clefairy}} [[Days of the week#Monday|dancing]] in [[Mt. Moon]] sometime during his life.
* A man in [[Valor Lakefront]] states that he would like to see a {{p|Lugia|silver-colored Pokémon}} that resides in the [[Whirl Islands]], a {{p|Ho-Oh|rainbow-colored Pokémon}} that resides in the [[Bell Tower|Tin Tower]], and {{p|Clefairy}} [[Days of the week#Monday|dancing]] in [[Mt. Moon]] sometime during his life.
* A {{tc|Ninja Boy}} on {{Rt|210|Sinnoh}} near [[Celestic Town]] says he wants to train with a [[Janine|ninja]] [[Gym Leader]] in a faraway land.
* A {{tc|Ninja Boy}} on {{rt|210|Sinnoh}} near [[Celestic Town]] says he wants to train with a [[Janine|ninja Gym Leader]] in a [[Kanto|faraway land]].
* {{tc|Dragon Tamer}} Hayden on {{rt|224|Sinnoh}} mentions that he left the [[Dragon's Den]] several years ago.
* {{tc|Dragon Tamer}} Hayden on {{rt|224|Sinnoh}} mentions that he left the [[Dragon's Den]] several years ago.
* The [[Poké Ball]] design on the floor of the Sinnoh Pokémon Centers is colored {{game|Gold and Silver|s|gold and silver}}. Park Balls are also colored gold and silver, and the normally black stripe in the middle is actually a light blue, {{game|Crystal||crystal}}-like color.
* The [[Poké Ball]] design on the floor of the Sinnoh Pokémon Centers is colored {{game|Gold and Silver|s|gold and silver}}. [[Park Ball]]s are also colored gold and silver, and the normally black stripe in the middle is actually a light blue, {{game|Crystal||crystal}}-like color.
* {{tc|Dragon Tamer}} Geoffrey on {{rt|225|Sinnoh}} mentions a [[Lance|Dragon Tamer Champion]].
* {{tc|Dragon Tamer}} Geoffrey on {{rt|225|Sinnoh}} mentions a [[Lance|Dragon Tamer Champion]].
* The {{p|Eevee}} which [[Bebe]] gives to the player was obtained originally from her [[Bill|friend]] in [[Johto]].
* The {{p|Eevee}} which [[Bebe]] gives to the player was obtained originally from her [[Bill|friend]] in Johto.
* [[Cynthia]], who somehow was able to obtain it (possibly from Jasmine, since she is in Sinnoh), gives the [[SecretPotion]], the medicine from [[Cianwood City]] that cured [[Amphy]] in [[Generation II]], to the player to cure the group of {{p|Psyduck}} blocking {{rt|210|Sinnoh}}.
* [[Cynthia]] gives the [[Secret Medicine|SecretPotion]], the medicine from [[Cianwood City]] that cured [[Amphy]] in [[Generation II]], to the player to cure the group of {{p|Psyduck}} blocking {{rt|210|Sinnoh}}.
* In [[Stargazer Colosseum]] in [[Pokémon Battle Revolution]], some of the Pokémon in the last battle depend on which game is linked to the Wii. If Diamond is linked, one of the Pokémon is {{p|Ho-Oh}}, Gold's [[version mascot]], and if Pearl is linked, one of the Pokémon is {{p|Lugia}}, Silver's version mascot.
* When visiting the [[Villa]], [[Roark]] wonders if he could make the [[Underground]] extend to [[Kanto]] and Johto.
* When a {{shiny}} {{p|Clefairy}} appears during a slot game in [[Veilstone Game Corner]], a remixed version of [[Mt. Moon Square]] music from {{3v2|Gold|Silver|Crystal}} is played.
* In [[Stargazer Colosseum]] in [[Pokémon Battle Revolution]], some of the Pokémon in the last battle depend on which game is linked to the Wii. If {{game|Diamond and Pearl|s|Pokémon Diamond}} is linked, one of the Pokémon is {{p|Ho-Oh}}, Gold's [[game mascot]], and if {{game|Diamond and Pearl|s|Pokémon Pearl}} is linked, one of the Pokémon is {{p|Lugia}}, Silver's game mascot.
* In Pokémon Platinum, one of the women in the basement floor of the [[Veilstone Department Store]] mentions that the store is sold out of [[RageCandyBar]]s, the local specialty in [[Mahogany Town]].
* When a {{Shiny}} {{p|Clefairy}} appears during a slot game in [[Veilstone Game Corner]], a remixed version of [[Mt. Moon Square]] music theme from Pokémon {{3v2|Gold|Silver|Crystal}} is played.
* In HeartGold and SoulSilver, the [[Gym guide]] of [[Vermilion Gym]] states that the Gym's traps were temporarily out of order, a reference to Gold, Silver, and Crystal.
* In {{game|Platinum}}, one of the women in the basement floor of the [[Veilstone Department Store]] mentions that the store is sold out of [[Rage Candy Bar|RageCandyBars]], the local specialty in [[Mahogany Town]].
* In the Pokégear's description of [[Cerulean Cave]], it states that the cave had collapsed.
* In {{game|HeartGold and SoulSilver|s}}, the [[Gym guide]] of [[Vermilion Gym]] states that the Gym's traps were temporarily out of order, a reference to Pokémon Gold, Silver, and Crystal.
* A Hiker in the {{rt|3|Kanto}} [[Pokémon Center]] states that the Pokémon Center didn't exist when he was climbing the mountain, which is only true in [[Generation II]].
* In the [[Pokégear]]'s description of [[Cerulean Cave]], it states that the cave had collapsed.
* In HeartGold and SoulSilver, the man at Indigo Plateau mentions that nobody uses his Abra to Teleport home anymore (which it used to do in Gold, Silver and Crystal) since they usually {{m|Fly}} to and from instead.
* A {{tc|Hiker}} in the {{rt|3|Kanto}} [[Pokémon Center]] states that the Pokémon Center didn't exist when he was climbing the mountain, which is only true in [[Generation II]].
* In {{game|HeartGold and SoulSilver|s}}, the man at [[Indigo Plateau]] mentions that nobody uses his {{p|Abra}} to {{m|Teleport}} home anymore (which it used to do in Generation II) since they usually {{m|Fly}} to and from instead.


====To Generation III====
====To Generation III====
* A man in [[Hearthome City]], who says he is from the [[Hoenn]] region, will show the player to the [[Contest Hall]], a feature originally introduced in Hoenn.
* A man in [[Hearthome City]], who says he is from the [[Hoenn]] region, will show the player to the [[Contest Hall]], a feature originally introduced in Hoenn.
* A man in [[Valor Lakefront]] states that he would like to see a rocket launch from the Space Center in [[Mossdeep City]] sometime during his life.
* A man in [[Valor Lakefront]] states that he would like to see a rocket launch from the [[Mossdeep Space Center|Space Center]] in [[Mossdeep City]] sometime during his life.
* A woman in Valor Lakefront claims to have lost her Suite Key. If the player finds it near the [[Hotel Grand Lake]] using the {{DL|Pokétch|Dowsing Machine}}, she will offer a reward of one {{DL|Status ailment healing item|Lava Cookie}}, a specialty of Hoenn, possibly implying that her home is in that region.
* A woman in Valor Lakefront claims to have lost her [[Suite Key]]. If the player finds it near the [[Hotel Grand Lake]] using the {{DL|Pokétch|Dowsing Machine}}, she will offer a reward of one [[Lava Cookie]], a specialty of Hoenn, possibly implying that her home is in that region.
* A {{tc|Swimmer}} south of the Valor Lakefront says she would like to vacation in [[Hoenn]] because it has more routes on which to {{m|Surf}}.
* A {{tc|Swimmer}} south of the Valor Lakefront says she would like to vacation in Hoenn because it has more routes on which to {{m|Surf}}.
* A woman west of [[Pastoria City]] used to work at the [[Weather Institute]] of Hoenn and will give out [[weather conditions|weather]]-changing [[TM]]s for [[Shard]]s.
* A woman west of [[Pastoria City]] used to work at the [[Weather Institute]] of Hoenn and will give out [[weather]]-changing [[TM]]s for [[Shard]]s.
* An old woman living at the base of [[Stark Mountain]] acts in the same way that another woman does on {{rt|111|Hoenn}} in Hoenn, insisting that the player keep healing his or her Pokémon with her in a creepy manner. Strangely, they both also live just north of a sandstorm-ridden desert.
* An old woman living at the base of [[Stark Mountain]] acts in the same way that another woman does on {{rt|111|Hoenn}} in Hoenn, insisting that the player keep healing their Pokémon with her. They both also live just north of a sandstorm-ridden desert.
* A Swimmer north of [[Sunyshore City]] wishes to visit Hoenn's seas.
* A {{tc|Swimmer}} north of [[Sunyshore City]] wishes to visit Hoenn's seas.
* A {{tc|Socialite}} in the Valor Lakefront restaurant will occasionally mention the sauce of her dish was made from spicy [[Cheri Berry|Cheri Berries]] with a Hoenn-style recipe.
* A {{tc|Madame|Socialite}} in the [[Seven Stars Restaurant]] will occasionally mention the sauce of her dish was made from spicy [[Cheri Berry|Cheri Berries]] with a Hoenn-style recipe.
* {{tc|Bird Keeper}} Audrey on {{rt|225|Sinnoh}} says she was born in [[Hoenn]].
* {{tc|Bird Keeper}} Audrey on {{rt|225|Sinnoh}} says she was born in Hoenn.
* A woman in the {{si|Battle Tower}} claims to have been from Hoenn, where another {{Ho|Battle Tower}} resides. In Platinum, her reference could mean either the Battle Tower itself or the {{gdis|Battle Frontier|III}} that is present in Hoenn.  
* A woman in the {{si|Battle Tower}} claims to have been from Hoenn, where another {{Gdis|Battle Tower|III}} resides. In {{game|Platinum}}, her reference could mean either the Battle Tower itself or the {{gdis|Battle Frontier|III}} that is present in Hoenn.
* A catalog in [[Rad Rickshaw]]'s Cycle Shop in [[Eterna City]] advertises the [[Mach Bike]] and [[Acro Bike]].
* A catalog in [[Rad Rickshaw]]'s Cycle Shop in [[Eterna City]] advertises the [[Acro Bike]] and [[Mach Bike]].
* In [[Stargazer Colosseum]] in {{g|Battle Revolution}}, some of the Pokémon in the last battle depend on which game is linked to the Wii. If Diamond is linked, one of the Pokémon is {{p|Kyogre}}, Sapphire's [[version mascot]], and if Pearl is linked, one of the Pokémon is {{p|Groudon}}, Ruby's version mascot.
* In [[Stargazer Colosseum]] in {{g|Battle Revolution}}, some of the Pokémon in the last battle depend on which game is linked to the Wii. If Diamond is linked, one of the Pokémon is {{p|Kyogre}}, Sapphire's [[game mascot]], and if Pearl is linked, one of the Pokémon is {{p|Groudon}}, Ruby's game mascot.
* The [[Meister|fourteen foreign Pokédex entries]] in Diamond and Pearl are all from the respective translated versions of {{game3|FireRed and LeafGreen|Pokémon LeafGreen|s}}.
* The fourteen [[foreign Pokédex entries]] in {{game|Diamond and Pearl|s}} are all from the respective translated versions of {{game3|FireRed and LeafGreen|Pokémon LeafGreen|s}}.
* In {{game|Platinum}}, the {{DL|Legendary artifacts|Adamant Orb}} and {{DL|Legendary artifacts|Lustrous Orb}} are required to summon {{p|Dialga}} and {{p|Palkia}}, much like the {{DL|Legendary artifacts|Red Orb}} and {{DL|Legendary artifacts|Blue Orb}} were required to summon Groudon and Kyogre.  
* In {{game|Platinum}}, the [[Adamant Orb]] and [[Lustrous Orb]] are required to summon {{p|Dialga}} and {{p|Palkia}}, much like the [[Red Orb]] and [[Blue Orb]] were required to summon Groudon and Kyogre.
* In {{game|HeartGold and SoulSilver|s}}, many buildings and lengths of most Routes and areas in [[Kanto]] are heavily based on [[Generation III]] Kanto rather than [[Generation II]] Kanto. Furthermore, many areas and other aspects not present in the Generation II Kanto have returned in order to resemble the Generation III Kanto more closely.
* In {{game|HeartGold and SoulSilver|s}}, many buildings and lengths of most Routes and areas in [[Kanto]] are heavily based on [[Generation III]] Kanto rather than [[Generation II]] Kanto. Furthermore, many areas and other aspects not present in the Generation II Kanto have returned in order to resemble the Generation III Kanto more closely.
* [[Mr. Pokémon]] is said to have gotten the {{DL|Legendary artifacts|Red Orb}}{{sup/4|SS}} or {{DL|Legendary artifacts|Blue Orb}}{{sup/4|HG}} from a friend in [[Hoenn]].
* [[Mr. Pokémon]] is said to have gotten the [[Red Orb]]{{sup/4|SS}} or [[Blue Orb]]{{sup/4|HG}} from a friend in Hoenn.
* {{Steven}}, Hoenn's former champion, is present in [[Vermilion City]], and will speak of [[Eon duo|a strange Hoenn-native Pokémon]] that has been reported {{pkmn2|roaming}} [[Kanto]].
* {{Steven}}, Hoenn's {{pkmn|Champion}}, is present in [[Vermilion City]], and will speak of [[Eon duo|a strange Hoenn-native Pokémon]] that has been reported {{pkmn2|roaming}} Kanto.
** He also appears in the [[Silph Co.]] building in [[Saffron City]] after the player defeats {{ga|Red}} and gives the {{player}} one of the [[Hoenn]] region's starter Pokémon.
** He also appears in the [[Silph Co.]] building in [[Saffron City]] after the player defeats {{ga|Red}} and gives the player one of the Hoenn region's [[first partner Pokémon]].
* When the player first encounters [[Bill]] in the [[Pokémon Center]] in [[Ecruteak City]], he will mention that [[Lanette]] from [[Hoenn]] helped him develop the [[Pokémon Storage System]].
* When the player first encounters [[Bill]] in the [[Ecruteak City]] [[Pokémon Center]], he will mention that [[Lanette]] from Hoenn helped him develop the [[Pokémon Storage System]].
* When the player battles the [[Frontier Brain]]s in {{game|Platinum}}, a remix of {{game|Emerald}}'s Frontier Brain theme can be heard.


===Generation V===
===Generation V===
====To Generation I====
====To Generation I====
* The [[Pokémon Center]]'s theme, as it's always been, is a direct remix from the original theme from {{game|Red and Blue|s}}.
* {{ga|Blue}}'s theme as [[Kanto]] {{pkmn|Champion}} is remixed in the final battles of official competitions.
* {{ga|Blue}}'s theme as [[Kanto]] {{pkmn|Champion}} is remixed in the final battles of official competitions.
* After a {{tc|Swimmer}} in [[Undella Bay]] is defeated, he claims he will challenge [[Gym Leader]]s all over the world, then asks where he can find {{type|Water}} [[Gym]]s, asking for confirmation that they're in [[Cerulean Gym|Kanto]], [[Sootopolis Gym|Hoenn]], and [[Pastoria Gym|Sinnoh]].
* After a {{tc|Swimmer}} in [[Undella Bay]] is defeated, he claims he will challenge the [[Gym Leader]]s all over the world. He then asks where he can find {{type|Water}} [[Gym]]s, asking for confirmation that they're in [[Cerulean Gym|Kanto]], [[Sootopolis Gym|Hoenn]], and [[Pastoria Gym|Sinnoh]].
* A {{tc|Black Belt}} in the [[Icirrus Gym]] says that he trained in a [[Fighting Dojo]] in [[Kanto]].  
* A {{tc|Black Belt}} in the [[Icirrus Gym]] says that he trained in a [[Fighting Dojo]] in Kanto.
* An {{tc|Ace Trainer}} aboard the [[Royal Unova]] mentions that she is from the [[Kanto]] region.
* According to one of the Plasma Grunts in [[N's Castle]], "[[Team Galactic]] and [[Team Rocket]] drew too much attention to themselves. That's why their plans were thwarted."
* A female {{tc|Swimmer}} in [[Humilau City]] references [[Misty]] by her [[Gym Leader]] title, ''"Tomboyish Mermaid"''.  
* An {{tc|Ace Trainer}} aboard the [[Royal Unova]] mentions that she is from the Kanto region.
* Shauntal references [[Agatha]] in a quote from her novel during the player's post-National Pokédex challenge. She also references [[Bertha]] and notes the similarity in appearance between the two.  
* A female {{tc|Swimmer}} in [[Humilau City]] references [[Misty]] by her Gym Leader title, ''"Tomboyish Mermaid"''.
* A {{tc|Lady}} in Humilau City references a {{tc|Youngster}} on [[Kanto Route 3]] when she says "This dress is comfy and easy to wear..."
* [[Shauntal]] references [[Agatha]] in a quote from her novel during the player's post-National Pokédex challenge. She also references [[Bertha]] and notes the similarity in appearance between the two.
* The [[Generation II]] [[Gym Leader]]s of Kanto (plus [[Giovanni]]) can be battled at the [[Pokémon World Tournament]]. {{ga|Blue}} also works as Kanto's representative in the [[Champions Tournament]].


====To Generation II====
====To Generation II====
* Shauntal mentions the {{DL|List of key items in Generation II|Silver Wing}} and the {{DL|List of key items in Generation II|Rainbow Wing}} in one of her conversations at Caitlin's Villa. These are the main items used to summon {{p|Lugia}} and {{p|Ho-Oh}}, respectively.
* [[Shauntal]] mentions the [[Silver Wing]] and the [[Rainbow Wing]] in one of her conversations at Caitlin's Villa. These are the main items used to summon {{p|Lugia}} and {{p|Ho-Oh}}, respectively.
* The lone {{tc|Team Rocket Grunt}} who stole the {{DL|List of key items in Generation II|Machine Part}} from Kanto's [[Power Plant]] is revealed to live in [[Unova]]. He says that while he had planned to revive [[Team Rocket]], soon after returning [[Icirrus City|home]] he fell in love and then married.
* The lone {{tc|Team Rocket Grunt}} who stole the [[Machine Part]] from the [[Kanto Power Plant]] is revealed to live in [[Unova]]. He says that while he had planned to revive [[Team Rocket]], soon after returning [[Icirrus City|home]] he fell in love and then married.
* The [[RageCandyBar]] returns. The wife of the Ex-Team Rocket Grunt, as well as [[Professor Juniper]], gives the RageCandyBar to the player. The wife mentions that the candy is the favorite sweet of one of her husband's past coworkers in Team Rocket.
* The [[Rage Candy Bar|RageCandyBar]] returns. The wife of the ex-Team Rocket Grunt, as well as [[Professor Juniper]], gives the RageCandyBar to the player. The wife mentions that the candy is the favorite sweet of one of her husband's past coworkers in Team Rocket.
* Team Rocket's [[Goldenrod Radio Tower|Radio Tower]] takeover theme can be heard in the [[Game Freak]] headquarters in [[Castelia City]].
* Team Rocket's [[Goldenrod Radio Tower|Radio Tower]] takeover theme can be heard in the [[Game Freak]] headquarters in [[Castelia City]].
* When Mr. Locke opens the [[Lock Capsule]], he also finds a letter that explains that [[TM95]] has been kept hidden from Team Rocket.
* {{p|Zorua}} is said to have waited for {{p|Celebi}} for a long time.
* {{p|Zorua}} is said to have waited for {{p|Celebi}} for a long time.
* According to one of the Plasma Grunts in [[N's Castle]], "[[Team Galactic]] and [[Team Rocket]] drew too much attention to themselves. That's why their plans were thwarted."
* According to one of the {{tc|Team Plasma Grunt}}s in [[N's Castle]], "[[Team Galactic]] and Team Rocket drew too much attention to themselves. That's why their plans were thwarted."
* A lady at [[Village Bridge]] references the [[Pokéathlon]] as a very popular competition in [[Johto]].
* A {{tc|Clerk}} aboard the [[Royal Unova]] mentions that he came from [[Johto]] for a business trip.
* A {{tc|Clerk ♂|Clerk}} aboard the [[Royal Unova]] mentions that he came from [[Johto]] for a business trip.  
* A {{tc|Lass}} on [[Skyarrow Bridge]] describes the trucks rounding the bend with onomatopoeia, calling it the dialect of [[Goldenrod City]].
* [[Gym Leader]]s of [[Johto]] can be battled at the [[Pokémon World Tournament]]. [[Lance]] and {{ga|Red}} also work as Johto's representatives in the [[Champions Tournament]].
* Before being battled at the Pokémon World Tournament, [[Norman]] mentions how he used to live in [[Olivine City]] before moving to [[Petalburg City]].


====To Generation III====
====To Generation III====
* A guy in the [[Desert Resort]] will mention that he doesn't need [[Go-Goggles]] to go through the sandstorm there, a reference to how they were needed to do so in [[Hoenn]]. In {{2v2|Black|White|2}}, he also mentions the [[Mirage Tower]].
* A man in the [[Desert Resort]] will mention that he doesn't need [[Go-Goggles]] to go through the sandstorm there, a reference to how they were needed to do so in [[Hoenn]]. In {{game|Black and White|s 2|Pokémon Black 2 and White 2}}, he also mentions the [[Mirage Tower]].
* Some of the themes, such as [[N]]'s final battle theme, the [[Team Plasma]] battle theme, and the [[Elite Four]] theme have segments of [[Hoenn]] themes in them.
* Some of the music themes, such as [[N]]'s final battle theme, the [[Team Plasma]] battle theme, and the [[Elite Four]] theme have segments of Hoenn themes in them.
* {{tc|The Riches}}, the family who offers their own battle challenge to the {{player}}, may be compared to the [[Winstrate family]] in {{game2|Ruby|Sapphire|Emerald}}.
* {{tc|The Riches}}, the family who offers their own battle challenge to the player, may be compared to the [[Winstrate family]] in {{game2|Ruby|Sapphire|Emerald}}.
* Returning to the former [[HM]] {{m|Dive}}, which is required to access [[Abyssal Ruins]], may be paralled with the [[underwater]] in [[Hoenn]].
* Returning to the former [[HM]] {{m|Dive}}, which is required to access [[Abyssal Ruins]], may be paralled with the [[underwater]] in Hoenn.
* In [[Undella Town]], two residents that reside there during the summer mention that they came from the Hoenn region for a vacation. One of them also mentions [[Steven Stone]].
* In [[Undella Town]], two residents that reside there during the summer mention that they came from the Hoenn region for a vacation. One of them also mentions [[Steven Stone]].
* The Unova [[Elite Four]] have a unique battle theme rather than the Gym leader battle theme. The only other region to do this was [[Hoenn]].
* A {{tc|Hiker}} in [[Clay Tunnel]] mentions that the soil here is similar to the soil in the Hoenn region.
* A {{tc|Hiker}} in [[Clay Tunnel]] mentions that the soil here is similar to the soil in the [[Hoenn]] region.  
* In {{game|Black and White|s 2|Pokémon Black 2 and White 2}}, in [[Icirrus City]], there is a married couple that used to be members of [[Team Magma]] and [[Team Aqua]].
* In [[Pokémon Black and White Versions 2|Pokémon Black 2 and White 2]], in [[Icirrus City]], there is a married couple that used to be members of [[Team Magma]] and [[Team Aqua]].
* When the player obtains the [[Bicycle]], the sprite is that of Acro Bike, rather than the normal one.
* When the player obtains [[bicycle]], the obtain sprite is that of Acro Bike, rather than the normal one.
* The {{game|Emerald}} [[Gym Leader]]s of Hoenn can be battled at the [[Pokémon World Tournament]]. {{Steven}} and [[Wallace]] also work as Hoenn's representatives in the [[Champions Tournament]].
* Before fighting Norman in the Pokémon World Tournament, he will mention having been beaten by his child, referencing {{ga|Brendan}} or {{ga|May}}'s victory over him in {{game2|Ruby|Sapphire|Emerald}}.


====To Generation IV====
====To Generation IV====
* In [[Nacrene Gym]], the book called "Sweets for Pokémon" describes [[Poffin]]s and mentions that they are made in the [[Sinnoh]] region.
* In [[Nacrene Gym]], the book called "Sweets for Pokémon" describes [[Poffin]]s and mentions that they are made in the [[Sinnoh]] region.
* [[Caitlin]] of the {{DL|Battle Frontier (Generation IV)|Battle Castle}} appears as an [[Elite Four]] member in [[Unova]]. She references her prior inability to battle, and mentions the Battle Castle's presence in [[Sinnoh]] and [[Johto]].
* [[Caitlin]] of the [[Battle Castle]] appears as an [[Elite Four]] member in [[Unova]]. She references her prior inability to battle, and mentions the Battle Castle's presence in Sinnoh and [[Johto]].
* [[Looker]] appears in search of the [[Seven Sages]] of [[Team Plasma]]. He is absent in Pokémon Black 2 and White 2, but [[Shauntal]] mentions him as part of one of the novels she is writing.
* [[Looker]] appears in search of the [[Seven Sages]] of [[Team Plasma]]. He is absent in Pokémon Black 2 and White 2, but [[Shauntal]] mentions him as part of one of the novels she is writing.
* [[Cynthia]] will meet the player at Caitlin's Villa in [[Undella Town]] after getting the [[National Pokédex]]. The player will be able to battle her in Spring and Summer.
* [[Cynthia]] will meet the player at Caitlin's Villa in [[Undella Town]] after getting the [[National Pokédex]]. The player will be able to battle her in Spring and Summer.
** In addition to this, after defeating her in a battle for the first time, she will mention that the player looked like the {{ga|Lucas|Tra}}{{ga|Dawn|iner}} who faced {{p|Giratina}}.
** In addition to this, after defeating her in a battle for the first time, she will mention that the player looked like {{ga|Lucas|the}} {{ga|Dawn|Trainer}} who faced {{p|Giratina}}.
* According to one of the Plasma Grunts in [[N's Castle]], "[[Team Galactic]] and [[Team Rocket]] drew too much attention to themselves. That's why their plans were thwarted."
* According to one of the Plasma Grunts in [[N's Castle]], "[[Team Galactic]] and [[Team Rocket]] drew too much attention to themselves. That's why their plans were thwarted."
* Shauntal mentions the [[Distortion World]] in one of her conversations at Caitlin's Villa. She states that {{p|Giratina|the only Pokémon living in the Distortion World}} was spectacular.
* Shauntal mentions the [[Distortion World]] in one of her conversations at Caitlin's Villa. She states that {{p|Giratina|the only Pokémon living in the Distortion World}} was spectacular.
* Before her rematch, Shauntal quotes a line about [[Volkner]], which comes from her novel. In Pokémon Black 2 and White 2, she also mentions Volkner's [[Flint (Elite Four)|close friend]] in another line from her novel.  
* Before her rematch, Shauntal quotes a line about [[Volkner]], which comes from her novel. In Pokémon Black 2 and White 2, she also mentions Volkner's [[Flint|close friend]] in another line from her novel.
* A man who gives away [[Fossil]]s everyday at [[Twist Mountain]] said that when the player looks carefully and digs at the walls of empty places like caves, the player will find many different kinds of items such as Fossils, a reference on how the player can dig up different kinds of items, especially Fossils, at the [[Sinnoh]] region's [[The Underground|underground]].
* A man who gives away [[Fossil]]s every day at [[Twist Mountain]] said that when the player looks carefully and digs at the walls of empty places like caves, the player will find many different kinds of items such as Fossils, a possible reference on how the player can dig up different kinds of items, especially Fossils, at the Sinnoh region's [[Underground]].
* {{tc|Ace Trainer}} Henry aboard the [[Royal Unova]] mentions that he is from the [[Sinnoh]] region.
* {{tc|Ace Trainer}} Henry aboard the [[Royal Unova]] mentions that he is from the Sinnoh region.
* Upon meeting Skyla for the first time, she tells Cedric, "You are talking like places like Kanto and Sinnoh are right around the corner!"
* Upon meeting Skyla for the first time, she tells Cedric, "You are talking like places like [[Kanto]] and Sinnoh are right around the corner!"
* In [[Lentimas Town]], a {{tc|Hiker}} mentions [[Stark Mountain]]. Both it and the nearby [[Reversal Mountain]] are where {{p|Heatran}} reside. The [[Magma Stone]] also appears as a key item needed to awaken the [[Legendary Pokémon]].  
* In [[Lentimas Town]], a {{tc|Hiker}} mentions [[Stark Mountain]]. Both it and the nearby [[Reversal Mountain]] are where {{p|Heatran}} reside. The [[Magma Stone]] also appears as a Key Item needed to awaken the [[Legendary Pokémon]].
* In Pokémon Black 2 and White 2, [[Crasher Wake]] appears on [[Unova Route 18|Route 18]] much like how he appeared on [[Route 47]] in [[Pokémon HeartGold and SoulSilver]].
* In the [[Strange House]], the player can find books talking about {{p|Darkrai}} and {{p|Cresselia}}, as well as collect the [[Lunar Feather|Lunar Wing]], which can be used to encounter Cresselia at the [[Marvelous Bridge]].
* Onboard the [[Plasma Frigate]], a {{tc|Team Plasma Grunt}} mentions that he used to be part of [[Team Galactic]].
* The [[Cave of Being]] is said to be connected to Sinnoh. The music used in the cave is ''[[Pokémon Diamond & Pokémon Pearl: Super Music Collection|Lake Caverns]]'' from {{game2|Diamond|Pearl|Platinum}}, and entering the cave after entering the [[Hall of Fame]] will cause the [[lake guardians]] to appear and fly off to various locations around Unova for the player to find and catch.
* In Pokémon Black 2 and White 2, a show on the <sc>Variety</sc> channel mentions that [[Aaron (Elite Four)|Aaron]] that used to be a [[Bug Catcher]] and a [[Gym Leader]] before joining the [[Sinnoh]] [[Elite Four]].
* In Pokémon Black 2 and White 2, [[Crasher Wake]] appears on {{rt|18|Unova}}, much like how he appeared on {{rt|47|Johto}} in {{game|HeartGold and SoulSilver|s}}, singing his theme song.
* Shauntal references Bertha in a quote from her novel during the player's post-National Pokédex challenge. She also references Agatha and notes the similarity in appearance between the two.
* On board the [[Plasma Frigate]], a {{tc|Team Plasma Grunt}} mentions that he used to be part of Team Galactic.
* In Pokémon Black 2 and White 2, a show on the <sc>Variety</sc> channel mentions that [[Aaron]] used to be a {{tc|Bug Catcher}} and a [[Gym Leader]] before joining the Sinnoh [[Elite Four]].
* Shauntal references [[Bertha]] in a quote from her novel during the player's post-National Pokédex challenge. She also references Agatha and notes the similarity in appearance between the two.
* After defeating her in battle, Shauntal says she wants her novels to be full of [[Pokémon HeartGold and SoulSilver Versions|heart and soul]].
* After defeating her in battle, Shauntal says she wants her novels to be full of [[Pokémon HeartGold and SoulSilver Versions|heart and soul]].
* A lady at [[Village Bridge]] references the [[Pokéathlon]] as a very popular competition in [[Johto]].
* After defeating a {{tc|Pokémon Ranger}} at {{rt|11|Unova}}, he considers training by standing under a waterfall, referencing [[Chuck]]'s training method in HeartGold and SoulSilver.
* [[Gym Leader]]s of [[Sinnoh]] can be battled at the [[Pokémon World Tournament]]. [[Cynthia]] also works as Sinnoh's representative in the [[Champions Tournament]].
===Generation VI===
====To Generation I====
* The layout of [[Santalune Forest]] is an almost exact copy of [[Viridian Forest]].
* Several moves originating from Generation I, including {{m|Psychic}} and {{m|Hyper Beam}}, use their original sound effects.
* [[Professor Sycamore]] gives new {{pkmn|Trainer}}s one of the three [[Kanto]] [[first partner Pokémon]].
* [[Cassius]] in [[Camphrier Town]] mentions how [[Bill]] sent him there to work with the [[PC]].
* A {{tc|Youngster}} on {{rt|5|Kalos}} will mention that he likes to wear shorts because "they are comfy and easy to wear."
* A sleeping {{p|Snorlax}} is blocking {{rt|7|Kalos}}, and the [[Poké Flute]] is required to awaken and get past it.
* A remix of the wild Pokémon battle music from Generation I plays when battling {{p|Mewtwo}} and the [[legendary birds]], using exactly the same instrumentation as that of the Game Boy music. The remix also contains the {{m|Strength|boulder pushing}} sound effect from [[Generation I]].
* An [[Non-player character|NPC]] at {{DL|Lumiose City|Magenta Plaza}} mentions that {{ga|Blue|Professor Oak's grandson}} visited [[Kalos]] to study abroad, and would frequently end conversations with "Smell ya later!" However, she also says that he got "bonjour" down just fine, which is how he greeted the player while aboard the [[S.S. Anne]].
* A {{tc|Battle Girl}} in the Fighting Dojo on the third floor of a building at [[North Boulevard]] mentions that her [[Kiyo|sensei]] came all the way from the Kanto region to open a [[Fighting Dojo]].
* A male NPC in the [[Lumiose Museum]] mentions that he and a group of other people are on an info-gathering trip from Kanto.
* [[Lysandre Labs]] is a high-tech facility inhabited by a [[villainous team]] where the player needs to use [[spin tile]]s and [[warp tile]]s to navigate around, much like the [[Silph Co.]] and the [[Team Rocket Hideout]].
* The {{kal|Unknown Dungeon}} uses the same name as the [[Cerulean Cave]] in Generation I. Also, both of these locations are the only places in their respective games where {{p|Mewtwo}} can be encountered. Additionally, an NPC blocks the entrance of each {{kal|Unknown Dungeon|Unknown}} [[Cerulean Cave|Dungeon]] until the player becomes the {{pkmn|Champion}}, both NPCs tell the player exactly the same thing if they interact with them, and mysteriously vanish after their conditions are met.
* The [[Poké Ball Factory]] in [[Laverre City]] shares many similarities to [[Silph Co.]]. In both cases, an evil team ([[Team Rocket]] or [[Team Flare]]) infiltrates the facility, and thwarting them rewards a [[Master Ball]]. However, Team Rocket's goal is to steal the plans for the Master Ball, whereas Team Flare apparently wants to steal [[Poké Ball]]s. Another similarity is that in both cases, the event happens in the sixth town that rewards the {{player}} with a [[Badge]] ([[Saffron City]] or Laverre City).
* A female NPC in [[Lumiose City restaurants|Restaurant Le Nah]] says she is from Kanto.
* An old male NPC in [[Mauville City]], who tells the player that he was born in [[Sinnoh]], also tells that his son lives in Kanto.
* A {{tc|Backpacker}} in [[Lilycove City]]'s Contest Spectacular Trainer Fan Club says he came all the way from Kanto to see [[Lisia]].
* A stone in a vitrine in {{DL|Mossdeep City|Steven's house}} is from [[Rock Tunnel]].
* A sample of water from Kanto is on display at the [[Oceanic Museum]].
====To Generation II====
* The {{p|Furfrou}} chase puzzle at the [[Parfum Palace]] is similar to the {{p|Farfetch'd}} chase puzzle in the [[Ilex Forest]].
* Unlike with other Pokémon, while Surfing on a {{p|Lapras}}, the Pokémon gains an alike overworld sprite. Whenever {{m|Surf}} was used outside of battle in Generation II, the overworld sprite of Lapras was used.
* [[Gym Leader]] [[Valerie]] is said to be from [[Johto]].
* A painting of [[Ecruteak City]] appears in the [[Lumiose Museum]].
* A female NPC in [[Kiloude City]] says that she is preparing a {{isl|Cinnabar}}ian hamburger steak. This is a reference to the Cinnabar Volcano Burger that was the {{jo|Mom|player's mother}}'s specialty in Johto.
* Like in the original games, the player character and {{ga|Brendan|his}}/{{ga|May|her}} family are originally from the Johto region in {{g|Omega Ruby and Alpha Sapphire}}.
* A stone in a vitrine in {{DL|Mossdeep City|Steven's house}} is from [[Mt. Mortar]].
* The [[Oceanic Museum]] contains a water sample from the Johto region.
* Two [[Rage Candy Bar]]s can be found at the [[Trick House]] during one of the puzzles.
* A girl in [[Sootopolis City]] tells that dedicated fans flock there "from as far away as [[Kanto]] and Johto" for "[[Wallace|the coolest Water-type Gym Leader]]".
* When the Magnemite Croquette line in [[Mauville Food Court]] becomes available, a boy will note that the dish uses specially made sauce from Johto when entering for the first time.
* If the player has {{p|Volcanion}} in their team, the head of [[TV Mauville]] can show them secret TV specials made about it. One of these specials takes place in Johto.
====To Generation III====
* A {{tc|Swimmer}} in [[Azure Bay]] claims that he swam to [[Kalos]] from the [[Hoenn]] region.
* A painting of [[Mr. Briney]] and [[Peeko]] appears in the [[Lumiose Museum]].
* A little girl in [[Laverre City]] will mention that her {{DL|Old guys|Giddy|uncle}} is from Hoenn when spoken to.
* A {{tc|Tourist}} will mention the hot springs in [[Lavaridge Town]] when spoken to.
* An old woman on the second floor of [[Hotel Richissime]] mentions that the 40th and 45th wedding anniversaries are the {{game|Ruby and Sapphire|s|ruby and sapphire}} anniversaries, respectively, while her husband next to her mentions that their first date was at the [[Oceanic Museum]].
* When the player can't afford a ride on the [[Lumiose City]] cab, one of the {{tc|Driver}}s will say when defeated, "Now I won't even have a copper to send back to my family in Hoenn..."
* A woman staying at Hotel Richissime on the fifth floor during the bed making job compares it to the [[Resort Gorgeous]] on the [[Sevii Islands]].
* The introduction of Pokémon Omega Ruby and Alpha Sapphire reflects to the original games, including the music.
* The [[DexNav]] interface resembles to the layouts from the original Pokémon Ruby and Sapphire. It also uses the original tileset.
* A {{tc|Bug Catcher}} tells the player that he "heard that [[Pokémon Center]]s used to have two stories until 10 years ago" and had "a special area known as the ''[[Pokémon Center#Generation III|Pokémon Cable Club]]''". The last game to utilise this feature, {{game|Emerald}}, was first released in 2004, 10 years before the remakes were released.
* In the [[Rustboro Gym]] and the [[Treasure Hunter]]'s house, a display of the map of Hoenn from Pokémon Ruby and Sapphire by [[Midori Harada]] is seen.
* A man at [[Mt. Pyre]] mentions how there used to be holes in the floor, a thing that was true in Generation III.
* When the player shows [[Norman]] the [[Eon Ticket]], he says that it has been 11 years since he last saw the ticket. Eon Ticket was originally distributed in 2003, 11 years before the remakes' release.
* {{gdis|Mirage Island|III}} is referenced in {{rt|130|Hoenn}}'s description on the {{DL|PokéNav Plus|AreaNav}}, which describes its nature. Although [[Mirage Islands]] appear in different parts of Hoenn, none appear on that route.
* The {{gdis|Battle Frontier|III}} in {{game|Emerald}} is referenced several times at the [[Battle Resort]]. A man in [[Battle Maison]] will mention [[Scott]] and the [[Lucy|Pike Queen]]. Another NPC will say to the player that the Battle Resort is planned to be replaced by the Battle Frontier in the future. There is also a model of the {{gdis|Battle Tower|III}} on top of the hill.
* The pattern the triangular object at the end of the [[Delta Episode]] darts around before {{p|Deoxys}} emerges is in the same pattern of the [[Birth Island]] puzzle from {{game|FireRed and LeafGreen|s|Pokémon FireRed, LeafGreen}}, and {{v2|Emerald}}.
* The [[Primal Reversion|Primal]] Pokémon battle theme contains small bits of the original [[super-ancient Pokémon]] battle theme from Generation III.
* The music that plays inside the [[Sky Pillar]] is a remix of the theme that plays when {{p|Rayquaza}} appears to stop the battle between {{p|Groudon}} and {{p|Kyogre}} in [[Sootopolis City]] in Pokémon Emerald.
* During the Delta Episode, [[Wallace]] battles the player with his {{pkmn|Champion}} team from Pokémon Emerald. In addition, during the cutscene at the end of the Delta Episode, {{Steven}} is seen requesting Wallace to take his place as Champion when he one day leaves the [[Hoenn League|Pokémon League]] to travel the world, referring to their respective roles in Emerald.
* When [[Lisia]] is talked to after defeating her and her uncle Wallace in a [[Pokémon Contest]], she mentions that Wallace has a mentor named [[Juan]], who appears in Pokémon Emerald to replace Wallace as the [[Gym Leader|Leader]] of [[Sootopolis Gym]] after Wallace becomes the Champion.
* [[Wattson]] mentions that the [[New Mauville]] used to be locked up normally before its current, more technological locking system. This is a reference to how, in Ruby, Sapphire, and Emerald, the player required the {{ho|Basement Key}} to enter New Mauville, instead of the new method, which doesn't involve obtaining an item.
* If the player has {{p|Volcanion}} in their team, the head of [[TV Mauville]] can show them secret TV specials made about it. The head of the expeditions featured in these specials is [[Brandon]], a famous explorer and the [[Frontier Brain]] of the [[Battle Pyramid]] from Pokémon Emerald.
* In [[Pokémon Super Mystery Dungeon]], several characters from [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team]] appear, such as [[Team A.C.T.]], {{OBP|Whiscash|Red and Blue Rescue Team}}, {{p|Ninetales}}, and {{p|Absol}}. Elements from those games are also mentioned by them, and the player is able to visit the [[Air Continent|continent]] where the games were set.
====To Generation IV====
* [[Drasna]] of the [[Elite Four]] claims her grandparents moved to [[Kalos]] from [[Celestic Town|a city where the past lives on]] in [[Sinnoh|a faraway region]], and that they raised her on the {{DL|Sinnoh myths|The Original Story|stories}} of the Pokémon of {{p|Dialga|time}} and {{p|Palkia|space}}.
* [[Looker]] returns as the main character of a post-game side story and at one point compares his assets to the size of [[Mt. Coronet]]. He also appears in [[Hoenn]] in the [[Battle Resort]], suffering from amnesia.
* Paintings of the {{gdis|Battle Frontier|IV|Sinnoh Battle Frontier}} and the [[Underground|Sinnoh Underground]] appear in the [[Lumiose Museum]].
* An NPC in [[Snowbelle City]] will play a remixed version of the music from [[Jubilife City]] when spoken to.
* A {{tc|Maid}} who wanders between hotels will eventually {{DL|In-game trade|Generation VI|trade}} the player an {{p|Eevee}} from [[Sinnoh]], referring to it as "[[Mr. Backlot]]'s Pokémon". The Eevee's [[Original Trainer|OT]] is "Elena" (Japanese: ヘレン ''Helen''), the name of one of the Maids in the {{si|Pokémon Mansion}} in {{game|Platinum}}.
* A male {{tc|Scientist}} on the second floor of [[Professor Sycamore]]'s lab in [[Lumiose City]] says that Sycamore studied under [[Professor Rowan]] in Sinnoh when he was younger.
* Lumiose City's layout bears a strong resemblance to the logo of the {{gdis|Battle Frontier|IV}} in [[Generation IV]].
* A female NPC in [[Snowbelle City]] [[Pokémon Center]] tells the player about a long-standing tradition in the Sinnoh region where people give [[Gracidea]] flowers to each other as a sign of appreciation. She will also give the player a Gracidea flower if the player shows her a {{p|Shaymin}}. A male NPC in the [[Berry Master]]'s house on {{rt|123|Hoenn}} will make a similar reference and give a Gracidea to the player under the same conditions.
* The [[Oceanic Museum]] contains a water sample from the Sinnoh region.
* An old male NPC in [[Mauville City]] tells the player that he was born in Sinnoh.
* A painting in [[Lilycove Museum]] depicts {{p|Giratina}} in "[[Distortion World|an odd landscape with bizarre and fantastic scenery]]". Another painting depicts {{p|Arceus}}.
* A stone in a vitrine in {{DL|Mossdeep City|Steven's house}} is from Mt. Coronet.
* A letter found at [[Sea Mauville]] mentions the loss of an [[Odd Keystone]] donated by the [[Oreburgh Mine]]. After reading the letter, it is possible to encounter a {{p|Spiritomb}} in the same room.
* Two [[Old Gateau]]x can be found at the [[Trick House]] during one of the puzzles.
* On {{rt|115|Hoenn}}, {{tc|Ruin Maniac}} Hayes mentions having visited some ruins in the Sinnoh region.
* If the player has {{p|Volcanion}} in their team, the head of [[TV Mauville]] can show them secret TV specials made about it. One of these specials takes place in Sinnoh.
* In [[Pokémon Super Mystery Dungeon]], several characters from [[Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness|Pokémon Mystery Dungeon: Explorers of Time, Darkness]], and {{FB|Pokémon Mystery Dungeon: Explorers of|Sky}} appear, such as [[Wigglytuff's Guild]] members, {{OBP|Grovyle|Explorers of Time, Darkness, and Sky}}, {{OBP|Celebi|Explorers of Time, Darkness, and Sky}}, {{OBP|Dusknoir|Explorers of Time, Darkness, and Sky}}, and {{p|Duskull}}. Elements from those games are also mentioned by them, and the player is able to visit the [[Grass Continent|continent]] where the games were set.
** The {{p|Gastrodon}} couple from the [[Pokémon Mystery Dungeon (WiiWare)|WiiWare Pokémon Mystery Dungeon]] games also appears in Pokémon Super Mystery Dungeon, mentioning their past profession of appraising [[Treasure Box]]es.
====To Generation V====
* A {{tc|Tourist}} eating outside of a café in [[Lumiose City]] mentions having visited [[Striaton Gym|the café]] in [[Striaton City]].
* Statues of {{p|Reshiram}} and {{p|Zekrom}} can be found in the courtyard of [[Parfum Palace]]. Two Tourists in the courtyard explain that the two Pokémon are [[Legendary Pokémon]] of the [[Unova]] region, and that Kalos and Unova must have been in contact with each other.
* A {{tc|Hiker}} found at the [[Ambrette Town]] Fossil Lab, who gives the player the four [[Drive]]s if shown a {{p|Genesect}}, says that he got the Drives from an acquaintance of his in the Unova region.
* At the [[Ambrette Town]] Fossil Lab, there are two skulls on display that resemble the [[Dragon Skull]] from the [[Nacrene Gym]].
* A {{tc|Backpacker}} on {{rt|10|Kalos}} mentions that [[Colress]] told him that the big rocks on that route emit some kind of special energy.
* In [[Shalour City]], a {{tc|Worker}} reveals that the Hiker who gives the player a [[Sun Stone]] in the same city likes ferris wheels and has finally found true love. This is likely a reference to Hiker Andy, who can ride the {{DL|Nimbasa City|Rondez-View Ferris Wheel}} with the player in [[Nimbasa City]].
* A male {{tc|Ace Trainer}} in [[Coumarine City]] will play a remix of the song "[[Pokémon Black & Pokémon White: Super Music Collection|An Unwavering Heart]]" from Generation V when spoken to.
* A {{tc|Beauty}} in Coumarine City explains that [[Fennel|Dr. Fennel]] of the Unova region created [[Game Sync]].
* A female {{tc|Scientist}} in Coumarine City mentions that [[Pokémon Dream World|Pokémon dream when they're tucked in]] with Game Sync.
* A {{tc|Lass}} in Coumarine City explains that [[Triple Battle]]s and [[Rotation Battle]]s got their start in the Unova region.
* A male {{tc|Pokémon Breeder}} in the {{DL|Lumiose City|Magenta Plaza}} [[Pokémon Center]] mentions [[Team Plasma]] "making news {{game|Black and White|s|a while back}} in the Unova region".
* A {{tc|Waitress}} on the first floor of the building containing the Fighting Dojo asks about the whereabouts of {{tc|The Riches}}, before mentioning that she's looking for Master Miles.
* A woman on the first floor of the building containing the Fighting Dojo mentions that she recently moved from a very rural part of Unova.
* Paintings of both [[Castelia City]] and the [[Battle Subway]] appear in the [[Lumiose Museum]].
* One of the items that the player may be asked to find during the lost-and-found job in [[Hotel Richissime]] is a [[Brycen-Man Series|Brycen-Man]] Figure.
* A {{tc|Tourist}} at the {{DL|North Boulevard|Lumiose Station}} mentions how the trains at the station are completely different from the [[Battle Subway|subways]] in Unova, where she comes from.
* A {{tc|Monsieur}} in the {{DL|Vernal Avenue|Stone Emporium}} says, "Ore, ore, ore... Ores that I adore! Ah, this is where you should laugh..." This heavily implies he's the {{DL|Item maniac|ore maniac}} who can be found in [[Icirrus City]], as he says the same thing when talked to for the first time.
* A {{tc|Fairy Tale Girl}} on {{rt|14|Kalos}} says that she can't wait to finish reading [[Shauntal]]'s new book.
* {{tc|Sky Trainer}} Clara on {{rt|16|Kalos}} says that her hometown is [[Mistralton City]].
* According to the [[television]] show "Gym Freaks", [[Wulfric]] is a fan of the [[Brycen-Man Series]], and [[Clemont]] is secretly saving up money to visit the [[Nimbasa City|amusement park]] in the Unova region.
* An {{tc|Ace Trainer}} at the Lumiose Museum mentions that his partner learned the move {{m|Dragon Tail}} in the [[Village of Dragons]].
* A globe in [[Wally]]'s house has a pin stuck in the place of Unova.
* A {{tc|Scientist}} at the [[Devon Corporation]] tells the player that he's working on a machine that can visualize a Pokémon's dreams, and mentions that [[Fennel|a rival of his]] is working on [[Game Sync|a similar project]] in the Unova region.
* The [[Oceanic Museum]] contains a water sample from the Unova region.
* [[Aarune]] tells the player upon meeting him that he is originally from the Unova region.
* An old male NPC in [[Mauville City]], who tells the player that he was born in [[Sinnoh]], also tells that his great-grandson is "off dreaming in Unova".
* A Backpacker in Mauville City mentions he is from Castelia City.
* A stone in a vitrine in {{DL|Mossdeep City|Steven's house}} is from [[Chargestone Cave]].
* A model of then-unfinished [[Royal Unova]] can be found at the Oceanic Museum.
* Two [[Casteliacone]]s can be found at the [[Trick House]] during one of the puzzles.
* A man in [[Pacifidlog Town]] mentions how he once dreamed of playing at the [[Big Stadium and Small Court|Big Stadium]]. He also gives the player {{TM|56|Fling}}.
* A model of Castelia City is available as a [[Secret Base]] [[decoration]] in the [[Lilycove Department Store]] rooftop sale.
* When first met in the [[Granite Cave]], [[Zinnia]] talks to the player about truths and ideals, referencing to {{p|Reshiram}} and {{p|Zekrom}}, respectively.
* A Backpacker in the basement of [[S.S. Tidal]] mentions that he is from Unova.
* In [[Pokémon Super Mystery Dungeon]], several characters from [[Pokémon Mystery Dungeon: Gates to Infinity]] appear, such as {{OBP|Virizion|Gates to Infinity}}, {{OBP|Victini|Gates to Infinity}}, {{OBP|Munna|Gates to Infinity}}, {{OBP|Hydreigon|Gates to Infinity}}, {{OBP|Emolga|Gates to Infinity}}, {{OBP|Dunsparce|Gates to Infinity}}, {{OBP|Umbreon and Espeon|Gates to Infinity|Umbreon, and Espeon}}. Elements from that game are also mentioned by them, and the player is able to visit the [[Mist Continent|continent]] where the game was set.
====To Generation VII====
* A {{tc|Backpacker}} that can be found in one of the [[Kalos hotels|various hotels]] in [[Kalos]] speaks about [[Alola|the region]] he is from, separate from the regions of the first five generations. He also gives the player a [[Strange Souvenir]]. This is so far the only direct reference to a future generation seen within the [[core series]].
===Generation VII===
====To Generation I====
* The player character in {{g|Sun and Moon}} and {{g|Ultra Sun and Ultra Moon}} and their family have moved to [[Alola]] from the [[Kanto]] region.
* {{ga|Red}} and {{ga|Blue}} make an appearance at the [[Battle Tree]] in Alola.
* [[Heahea City]] was said to be formed by people who traveled from Kanto and [[Johto]] long, long ago and came together in the Alola region.
* A {{tc|Sightseer}} in Heahea City says that he wants to document all the differences between [[Diglett's Tunnel]] in Alola and [[Diglett's Cave]] in Kanto.
* A poster within the Geothermal Power Plant on [[Blush Mountain]] talks about the [[Kanto Power Plant]]. It also goes on to say that the [[Legendary Pokémon]] {{p|Zapdos}} appeared there once.
* An NPC at [[Aether Paradise]] mentions that her group is there to study how things are done there, and compares it to how things are done at the {{safari|Kanto}} in [[Fuchsia City]].
* [[Malie Garden]] is colloquially called "Nugget Garden" and has its own {{rt|24|Kanto|Nugget Bridge}} along with a similar challenge of battling a number of Trainers on it. The Trainers even use the same Pokémon and lines dialogue as the Trainers on the original Nugget Bridge in {{game|Red and Blue|s}}.
* An NPC at Aether Paradise mentions that the PC Boxes for [[Pokémon Storage System]] were developed by [[Bill]] in the Kanto region. He adds that Bill is "apparently a real {{tc|Poké Maniac|Pokémon maniac}}".
* In Sun and Moon, [[Lillie]] takes [[Lusamine]] to see Bill in the chance he could help make Lusamine better after she got bonded with {{p|Nihilego}} after hearing about how Bill got combined with a Pokémon.
* A woman in the [[Hau'oli City]] Mall next to a poster says "Hey! Under this poster... There's nothing! Of course there's no switch, silly!", referencing the secret switch under the poster in the [[Celadon Game Corner|Rocket Game Corner]] that gave access to the [[Team Rocket Hideout]].
* [[Professor Kukui]] tells the player about his travels in the Kanto region and how he challenged the [[Indigo League|Pokémon League]] there.
* One phrase that the player may receive from the Johto Tent at the [[Festival Plaza]] is "You better have [[Burn Heal]]!" This line is also spoken by [[Blaine]] before his Gym battle.
* In Ultra Sun and Ultra Moon, the player has an autograph from [[Lt. Surge]] in [[player's house|their room]].
* In Ultra Sun and Ultra Moon, [[Malie City]] houses the [[Kantonian Gym]], which is modeled after the [[Vermilion Gym|Gym in Vermilion City]]. Defeating the Leader of the Gym rewards the player with a [[Surge Badge]], a reference to the {{badge|Thunder}} and the [[Gym Leader]] who hands it out, Lt. Surge.
* When encountered on {{rt|9|Alola}} in Ultra Sun and Ultra Moon, [[Looker]] mentions that there have been reported sightings of the [[Team Rocket|infamous Pokémon mafia]] in Alola. This also foreshadows the events of the [[Episode RR|post-game]].
* The woman selling fossils in [[Olivia]]'s jewelry shop in [[Konikoni City]] mentions that Olivia brought the [[Dome Fossil|Dome]] and [[Helix Fossil]]s to Alola from the Kanto region.
* A {{tc|Black Belt}} on [[Mount Lanakila]] mentions how he and his fellow Black Belts next to him are from the [[Fighting Dojo]].
* [[Team Rocket]] makes a return as [[Team Rainbow Rocket]], with [[Giovanni]] once again as its leader. Giovanni also uses a {{p|Mewtwo}} to battle the player.
* Giovanni's battle theme in [[Team Rocket's Castle]] contains remixed bits of the [[Team Rocket Hideout]] theme.
* In Ultra Sun and Ultra Moon, [[Gladion]] travels to Kanto and [[Johto]] to train. When he returns during the post-game, he uses the fully-evolved form of a Kanto [[first partner Pokémon]].
* In [[Pokémon Quest]], the player is accompanied by a drone named MoBee IV, which is mentioned to have been manufactured by the [[Silph Co.]]
* [[Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!]] are modified remakes of {{game|Yellow}}.
* In [[Cerulean City]], one of the [[Bicycle]]s on display at the Bike Maniac's house is described to be a limited edition Bicycle that was popular a while ago and costs {{PDollar}}1,000,000, referring to the Bicycle in Generation I that cost this amount and was thus unbuyable.
* In [[Vermilion City]], a man with a {{p|Farfetch'd}} [[nickname]]d Dux mentions how he's planning to go catch a {{p|Spearow}} soon, referencing the Generation I [[in-game trade]] where the player can trade a Spearow for a Farfetch'd named Dux in the same city.
* In [[Celadon City]], a {{tc|Team Rocket Grunt}} ponders the possibility of making more money with the Game Corner if they offered Pokémon in exchange for {{OBP|Coin|Game Corner}}s, which is how the Game Corner functions in Generation I.
* After being defeated, {{tc|Punk Guy}} Hideo on {{rt|16|Kanto}} mentions that he and his friends used to ride their bikes up and down the road a long time ago, referring to {{rt|17|Kanto}}'s status as the Cycling Road in previous generations, as well as to the fact that the Punk Guys in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee! are modeled after the Generation I {{tc|Biker}}s.
** This is further referenced by {{tc|Gentleman}} Orson on Route 17, who, after being defeated, mentions how the route used to be called the Cycling Road before it was converted into the Pokémon Road.
* When the player visits [[Professor Oak's Laboratory]] after defeating the seven first Gyms, [[Professor Oak]] pretends to have forgotten Blue's name and asks what it is, referencing the opening of the Generation I games, where he [[Professor Oak/Quotes|asks]] the player the same question.
* After being defeated, [[Lance]] briefly jokes that Professor Oak will be the player's final battle at the [[Indigo Plateau|Pokémon League]], alluding to the [[Pokémon Red and Green beta#Professor Oak battle|scrapped battle against Professor Oak]] in the Generation I games.
====To Generation II====
* [[Heahea City]] was said to be formed by people who traveled from Kanto and [[Johto]] long, long ago and came together in the [[Alola]] region.
* [[Malie City]] was also said to be formed by people from Johto settling in Alola.
* [[Malie Garden]] also has a lake inside of it in the shape of a Gyarados, an allusion to the [[Lake of Rage]] in Johto.
* A {{tc|Sightseer}} in Malie City mentions that she is from Johto and finds it odd that people in Alola don't use {{m|Fly}} to travel, before giving the player the [[TM76|TM]] for the move.
* [[Lana]] mentions having reeled in a [[Red Gyarados]] once. In the end, she was just trying to trick the player into believing her.
* A poster within the Geothermal Power Plant on [[Blush Mountain]] mentions the [[Kanto Power Plant]] and how a [[Machine Part]] being stolen from there once put the entire plant out of operation, referencing the post-game events of the Johto games.
* On [[Mount Lanakila]], [[Professor Kukui]] mentions facing the [[Indigo League]] and how tough the battle with [[Lance]] was. Lance was the {{pkmn|Champion}} of the Indigo League in the Generation II games and their remakes.
* The player is able to obtain one [[Apricorn]] Ball each per game. These are the special [[Poké Ball]]s that [[Kurt]] makes by hand in the Johto region. In Ultra Sun and Ultra Moon, the player can also receive one of each Apricorn Ball from a [[Game Freak]] employee in Heahea City by showing him a Pokémon from a [[Virtual Console]] version of a [[Generation II]] game.
* A [[Rage Candy Bar]] is given to the player in [[Pokémon Center Café]]s when buying a drink for the first time on Tuesdays.
* In Ultra Sun and Ultra Moon, [[Gladion]] travels to Kanto and Johto to train.
* In Ultra Sun and Ultra Moon, a {{tc|Gentleman}} in the Akala Ferry Terminal in Heahea City mentions Kurt and the rare [[GS Ball]], claiming that its name stands either for the "greatest smith's ball" or "Gold-Silver Ball".
* In {{OBP|Detective Pikachu|video game}}, {{OBP|Mewtwo|Detective Pikachu}} is mentioned to possess the [[Berserk Gene]], which was also a Generation II-exclusive item heavily related to Mewtwo. It is used to make a drug called "[[R]]", which temporarily boosts a Pokémon's power while also causing them to go berserk, referencing the Berserk Gene's effect of boosting a Pokémon's {{stat|Attack}} upon consumption, while also {{status|Confusion|confusing}} it.
* After Giovanni has been defeated at the [[Viridian Gym]] and he's left to train alone, {{ga|Blue}} takes charge of the Gym himself, just like he had done in Generation II. In addition, when he's challenged for a [[rematch]] during the post-game, he mentions how he's planning to remodel the Gym, which he's seen to have done in Generation II.
* After being defeated in a rematch, [[Sabrina]] mentions how she won't be facing another challenger like the player for three years, referencing the three-year gap in-between the events of Kanto and Johto games and her future battle against the Johto player character.
* After being defeated in a rematch, [[Koga]] mentions how he has plans to join the [[Elite Four]], which he's accomplished by the time of the Johto games. From the second rematch onward, he will also mention [[Janine|his daughter]] before the battle.
* From the second rematch onward, [[Blaine]] mentions that the {{isl|Cinnabar}} Volcano is being active lately in his pre-battle [[Blaine/Quotes|dialogue]]. In addition, a news flyer at the Cinnabar [[Pokémon Center]] warns people of the possibility of a volcanic eruption. These are references to the eruption of the Cinnabar Volcano, which occurs before the events of [[Generation II]] and devastates most of Cinnabar Island.
====To Generation III====
* [[Wally]] makes an appearance at the [[Battle Tree]] in [[Alola]].
* A {{tc|Scientist}} at [[Vast Poni Canyon]] mentions that his idol is [[Professor Birch]].
* [[Lana]] jokes that {{p|Kyogre}} could be found in [[Brooklet Hill]]'s waters.
* [[Anabel]] appears in the post-game as a member of the [[International Police]] and [[Looker]]'s superior. She is mentioned to have "protected some tower" in the [[Hoenn]] region and having been a powerful Trainer, referring to her status as the [[Frontier Brain]] of Hoenn's {{gdis|Battle Tower|III}} in {{game|Emerald}}. She can also be found at the Battle Tree.
* When examining the shelves in Thrifty Megamart on [[Royal Avenue]], the player is informed that the shop has a sale on shipping-damaged [[Lava Cookie]]s.
* A Lava Cookie is given to the player in [[Pokémon Center Café]]s when buying a drink for the first time on Saturdays.
* While describing {{p|Hypno}}, [[Ilima]] mentions how "the [[Pokédex]] from a distant land says that the arching movement and glitter of its pendulum lulls its foes into a deep state of hypnosis", referencing Hypno's Pokédex entry from {{game|Ruby and Sapphire|s}}.
* The woman selling fossils in [[Olivia]]'s jewelry shop in [[Konikoni City]] mentions that Olivia brought the [[Root Fossil|Root]] and [[Claw Fossil]]s to Alola from the Hoenn region.
* In Ultra Sun and Ultra Moon, the man in the Ula'ula Ferry Terminal in [[Malie City]] who gives the player a [[Nugget]] says that he dug up lots of Nuggets on the [[Sevii Islands]]. This heavily suggests that this man is the same one who can be found mining for gold at [[Three Isle Path]] in {{game|FireRed and LeafGreen|s}}, further supported by their similar dialogue.
* [[Maxie]] and [[Archie]], in their [[Generation III]] designs, appear as members of [[Team Rainbow Rocket]], using {{p|Groudon}} and Kyogre, respectively, to battle the player.
* The Bike Maniac's [[Bicycle]] collection in [[Cerulean City]] includes [[Acro Bike|Acro]] and [[Mach Bike]]s.
* On {{rt|19|Kanto}}, {{tc|Swimmer}} David mentions "a move in another region that lets you dive underneath the water", likely referring to Hoenn (where {{m|Dive}} was first introduced) and its [[underwater]] areas.
* {{ga|Red}} and {{ga|Green}}'s VS models' poses in [[Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!]] are identical to Red and {{ga|Leaf}}'s VS poses, respectively, in {{game|FireRed and LeafGreen|s}}.
====To Generation IV====
* [[Cynthia]] makes an appearance at the [[Battle Tree]] in [[Alola]].
* A {{tc|Sightseer}} in the [[Pokémon Center]] on {{rt|8|Alola}} questions who would win in a matchup between the Masked Royal and [[Crasher Wake]].
* In order to research how the [[Ultra Beast]]s emerge from portals, the Pokémon {{p|Giratina}}, {{p|Palkia}}, and {{p|Bronzong}} are noted at the Dimensional Research Lab.
* When examining the shelves and fridges in Thrifty Megamart on [[Royal Avenue]], the player is informed that the shop has a sale on [[Mt. Coronet]] [[Fresh Water]], as well as on Sinnohan [[Poffin]] Assortments.
* The laboratory in [[Aether Paradise]] contains files about the development of {{p|Type: Null}}. According to the one of them, materials for the development were collected from [[Canalave Library]].
* [[Looker]] appears in Alola as Anabel's subordinate.
* When encountered on {{rt|9|Alola}} in Ultra Sun and Ultra Moon, Looker mentions how Alola doesn't have anyone "so terrible as to try to create a new world", referencing [[Team Galactic]].
* An [[Old Gateau]] is given to the player in [[Pokémon Center Café]]s when buying a drink for the first time on Thursdays.
* The woman selling fossils in [[Olivia]]'s jewelry shop in [[Konikoni City]] mentions that Olivia brought the [[Skull Fossil|Skull]] and [[Armor Fossil]]s to Alola from the Sinnoh region.
* The designs for the male and female {{tc|Pokémon Breeder}}s greatly resemble those of the Sinnohan {{tc|Rancher}}s and {{tc|Cowgirl}}s, respectively.
* In Ultra Sun and Ultra Moon, the player can find a bottle message at [[Ula'ula Beach]], which they can deliver to {{tc|Rising Star}} Kainoa at the [[Malie City]] Outer Cape. He will tell the player that the message is from a friend of his named Arabella, who works as a Gym Trainer in Kanto. This is a reference to {{tc|Ace Trainer}} Arabella, who can be battled at the [[Viridian Gym]] in {{game|HeartGold and SoulSilver|s}}.
* [[Cyrus]] appears as a member of [[Team Rainbow Rocket]], using either {{p|Dialga}}{{sup/7|US}} or {{p|Palkia}}{{sup/7|UM}} to battle the player.
* [[Archer]] appears as a member of Team Rocket. During the post-game, he mentions his plans to leave Kanto and one day bring back Team Rocket, referencing his role as the leading {{tc|Executive}} of Team Rocket in {{game|HeartGold and SoulSilver|s}}.
====To Generation V====
* [[Professor Burnet]] makes her core series debut in {{g|Sun and Moon}}, working at the Dimensional Research Lab in [[Heahea City]], and being married to [[Professor Kukui]]. She also gives the player the [[Reveal Glass]], referencing [[Pokémon Dream Radar|her origin game]].
* An {{tc|Aether Foundation Employee}} mentions that she once worked in [[Driftveil City]], helping Pokémon that got separated from their Trainers, most likely due to the actions of [[Team Plasma]].
* [[Colress]] makes an appearance on {{rt|8|Alola}}, and talks about his wish to bring about the full potential in Pokémon. After the player has become {{pkmn|Champion}}, he'll reappear and give the player Genesect's [[Drive]]s, mentioning how they were created at the [[P2 Laboratory]]. He also makes an appearance at the [[Battle Tree]].
** In Ultra Sun and Ultra Moon, Colress's role is expanded. He can now first be seen at the [[Tide Song Hotel]] in Heahea City, thinking about {{ga|Nate|the}} {{ga|Rosa|Trainer}} he {{game|Black and White|s 2|once}} met. He also helps the [[Ultra Recon Squad]] by developing [[N-Solarizer|two]] [[N-Lunarizer|devices]], which are modified versions of the [[Colress Machine]], for fusing and de-fusing {{p|Necrozma}} with {{p|Solgaleo}} and {{p|Lunala}}. When he later gives these devices to the player on [[Mount Lanakila]], he alludes to his {{p|Kyurem|earlier experiences}} regarding Pokémon fusion. During [[Episode RR]], he appears again to assist the player and [[Lillie]] at [[Team Rocket's Castle]], using another modified Colress Machine to send dimension-displaced {{cat|villainous team leaders}} back to where they came from.
* When encountered on {{rt|9|Alola}} in Ultra Sun and Ultra Moon, [[Looker]] mentions how Alola doesn't have anyone trying to separate Pokémon from their Trainers, referencing Team Plasma.
* [[Grimsley]] can be found on {{rt|16|Alola}}, and registers {{p|Sharpedo}} on the player's [[Poké Ride]]. He can also be found in the [[Battle Tree]]. In Ultra Sun and Ultra Moon, he also initially holds high scores on all the [[Mantine Surf]] beaches.
* A [[Casteliacone]] is given to the player in [[Pokémon Center Café]]s when buying a drink for the first time on Wednesdays. A [[Sweet Heart]] can be received on Sundays under the same conditions.
* The woman selling fossils in [[Olivia]]'s jewelry shop in [[Konikoni City]] mentions that Olivia brought the [[Cover Fossil|Cover]] and [[Plume Fossil]]s to Alola from the Unova region.
* [[Ghetsis]] appears as a member of [[Team Rainbow Rocket]], using either {{p|Zekrom}}{{sup/7|US}} or {{p|Reshiram}}{{sup/7|UM}} to battle the player.
====To Generation VI====
* [[Dexio]] and [[Sina]], [[Professor Sycamore]]'s assistants from {{g|X and Y}}, appear in Sun, Moon, Ultra Sun, and Ultra Moon, telling the player about {{p|Zygarde}} and its {{form|Zygarde|Cells}} and giving the player a [[Zygarde Cube]], which is stated to have been discovered by Professor Sycamore. When met in [[Heahea City]], they mention being reminded of a group of five young Trainers, referring to the Kalos player character and their [[rival]]s. They later appear on [[Poni Island]] and inform the player about [[Mega Evolution]], giving the player a [[Key Stone]] and an [[Alakazite]]. They also make an appearance at the [[Battle Tree]].
* When encountered for the first time on {{rt|8|Alola}}, [[Colress]] wonders out loud if the [[Z-Ring]]'s{{sup/7|SM}}/[[Z-Power Ring]]'s{{sup/7|USUM}} power can surpass that of the [[Mega Ring]].
* A man on the first floor of the Dimensional Research Lab in Heahea City mentions having heard about "some rare Pokémon that can use rings to teleport itself through space", describing {{p|Hoopa}}.
* A {{tc|Collector}} on {{rt|11|Alola}} says that there is a Pokémon in the [[Kalos]] region with bamboo leaves in its mouth, referring to {{p|Pancham}} and {{p|Pangoro}}.
* A poster within the Geothermal Power Plant on [[Blush Mountain]] talks about the [[Kalos Power Plant]]. It mentions that it draws its energy from space with microwaves and send back to the planet's surface. The people in Kalos work with Porygon in space.
* In Sun and Moon, [[Samson Oak]] mentions that the [[Rotom Pokédex]] was built with the help of a "young fellow" from Kalos. This could be a reference to [[Clemont]], given his reputation as a genius inventor.
* After becoming the {{pkmn|Champion}}, {{tc|Swimmer Girls}} Kylie and Ashlyn on [[Poni Breaker Coast]] will tell the player that they come from the Kalos region. They also talk about [[Trainer PR Video]]s and about being known in Kalos for their skills in [[HM]]-making.
* A [[Lumiose Galette]] is given to the player in [[Pokémon Center Café]]s when buying a drink for the first time on Mondays. A [[Shalour Sable]] can be received on Fridays under the same conditions.
* In [[Hau'oli City]], [[Ilima]]'s mother gives the player a Lumiose Galette and explains that it's his favorite food from the Kalos region, where he went to study abroad.
* There is a {{DL|Lumiose City restaurants|Sushi High Roller}} in [[Malie City]]. A {{tc|Sightseer}} who is dining there says that he once visited the branch in Kalos.
* During [[Acerola]]'s trial at the {{OBP|Thrifty Megamart|Abandoned Site}}, a picture of [[Cosplay Pikachu|Pikachu Pop Star]] can be seen amongst the many {{p|Pikachu}} pictures in {{pkmn2|Totem}} {{p|Mimikyu}}'s room.
* In Ultra Sun and Ultra Moon, a {{tc|Team Skull Grunt}} in [[Po Town]] says he's from the Kalos region.
* The bottom floor of [[Resolution Cave]] has a practically identical layout to Zygarde's chamber in Kalos's [[Terminus Cave]]. In Sun and Moon, a Zygarde Cell is found in the center of the chamber, while in Ultra Sun and Ultra Moon, a 50% Forme Zygarde is there instead, like it was in Terminus Cave in X and Y.
* After becoming Champion, a mysterious man appears in [[Haina Desert]], apparently suffering from amnesia. If the player shows him a {{p|Solrock}}{{sup/7|S}}{{sup/7|US}}/{{p|Lunatone}}{{sup/7|M}}{{sup/7|UM}}, he will regain his memories and mention that he first encountered the Pokémon shown to him 30 years earlier, and that the "star pulses" it bestowed upon him have been passed down to "a group of wonderful men". This is likely a reference to the [[old guys]] and the [[O-Power]]s they give to the player in {{g|Omega Ruby and Alpha Sapphire}}.
* The woman selling fossils in [[Olivia]]'s jewelry shop in [[Konikoni City]] mentions that Olivia brought the [[Jaw Fossil|Jaw]] and [[Sail Fossil]]s to Alola from the Kalos region.
* In Ultra Sun and Ultra Moon, a boy in the Akala Ferry Terminal in Heahea City mentions the [[Poké Ball Factory|factory in Kalos]] that makes [[Poké Ball]]s.
* [[Lysandre]] appears as a member of [[Team Rainbow Rocket]], using either {{p|Xerneas}}{{sup/7|US}} or {{p|Yveltal}}{{sup/7|UM}} to battle the player. He also mentions the [[ultimate weapon]], forcing the player character to make a similar choice between two buttons as he did for the Kalos player character in X and Y.
* When the player enters the [[S.S. Anne]], {{ga|Blue}} gives them a Shalour Sable.
* One of the games at the [[Celadon Game Corner|Rocket Game Corner]] features a Pikachu fighting in a mask, a reference to [[Cosplay Pikachu|Pikachu Libre]]. This could also be a reference to [[Pokkén Tournament]], in which Pikachu Libre is a playable Pokémon.
===Generation VIII===
====To Generation I====
* An [[Non-player character|NPC]] in [[Motostoke]] and a {{tc|Backpacker}} in [[Circhester]] mention that [[curry]] is a big thing in [[Kanto]].
* An NPC in [[Hammerlocke]] mentions that {{p|Meowth}} in Galar look different from Meowth in Kanto and [[Alola]].
* A boy in [[Wyndon]] says that a nearby {{rf|Galarian}} {{p|Mr. Mime}} is named Marcel, a reference to the Mr. Mime that can be obtained from an [[in-game trade]] in {{game|Red and Blue|s}}.
* An NPC in Wyndon says that both Kantonians and Galarians like waiting in lines.
* The [[Cram-o-matic]] can sometimes give the player a [[Safari Ball]]. Its description mentions the [[Kanto Safari Zone]].
* {{tc|Gym Challenger}} Deneb mentions that she traveled to [[Kanto]] to train at the [[Fighting Dojo]].
* [[Todd Snap|Todd]], the [[player character]] of  [[Pokémon Snap]], returns as an NPC in [[New Pokémon Snap]]. He also helped [[Professor Mirror]] in designing the [[NEO-ONE]], which is directly based on the [[ZERO-ONE]] vehicle designed for him by [[Professor Oak|a certain Pokémon Professor]] years earlier.
* Todd remarks that the [[Mightywide River]] makes him feel nostalgic, referencing the fact that it shares many similarities with the {{FB|Pokémon Island|Valley}} stage from the original Pokémon Snap.
* {{hi|Charm}} of the [[Miss Fortunes]] mentions that she came to [[Hisui]] from Kanto.
====To Generation II====
* [[Rage Candy Bar]] is one of the rewards the player can win at the [[Battle Café]].
* The [[Ball Guy]] gives the player one of each kind of [[Apricorn]] Poké Ball over the course of the game. More can also be obtained from him by winning a tournament at the [[Wyndon Stadium|Pokémon League]].
* Apricorns can be found and turned into Apricorn Poké Balls on the [[Isle of Armor]].
* The [[Cram-o-matic]] can sometimes give the player a [[Sport Ball]]. Its description mentions the [[Bug-Catching Contest]] in the [[Johto]] region.
* Like in Johto, {{i|Apricorn}}s are used as [[crafting]] materials for Poké Balls in [[Hisui]].
* During [[Task#Requests|Request]] 67: "The Clefairy's Moonlit Dance", a [[Galaxy Team]] member mentions that {{p|Clefairy}} dance during the full moon where he comes from, likely referencing the Clefairy dance at [[Mt. Moon Square]]. When the player witnesses Clefairy dancing during the request, a remix of the theme that plays during the Clefairy dance in Generation II is heard. Just like in Generation II, the Clefairy also leave behind a [[Moon Stone]] while running away.
====To Generation III====
* [[Lava Cookie]] is one of the rewards the player can win at the [[Battle Café]].
* [[Kabu]] is mentioned to have come to [[Galar]] from [[Hoenn]].
* The ruins containing the [[legendary giants]] use a remixed version of the music their ruins in Generation III use.
* There's an inaccessible restaurant in [[Jubilife Village]] called the Sevii Kitchen, which is a reference to the [[Sevii Islands]].
====To Generation IV====
* [[Old Gateau]] is one of the rewards the player can win at the [[Battle Café]].
* The [[Cram-o-matic]] can sometimes give the player a [[Safari Ball]]. Its description mentions the [[Great Marsh]] in [[Sinnoh]].
* The [[legendary giants]] in the [[Crown Tundra]] are encountered by lighting up floor tiles by walking on them and then interacting with a statue, similar to how the legendary giants were awakened in {{game|Platinum}}. The screen also shakes at the beginning of the encounter in a similar fashion as it does in Platinum.
* In the first series of [[rematch]]es, the Sinnoh [[Elite Four]] members use their respective teams from Platinum.
* The [[Hisui]] region, the setting of [[Pokémon Legends: Arceus]], is the Sinnoh region in the past.
* [[Galaxy Team]] shares its Japanese name with [[Team Galactic]]. During the post-game, [[Cyllene]] promises to pass down the team's name to the following generations, explaining how Team Galactic got its name.
* One of the [[Old Verse]]s the player can find in Hisui mentions Sinjoh, whose ruins the player can visit during an event in {{game|HeartGold and SoulSilver|s}}.
* The pattern seen at the [[Hall of Origin]] in Pokémon Legends: Arceus is the same one seen during the [[Sinjoh Ruins]] event.
====To Generation V====
* [[Casteliacone]] is one of the rewards the player can win at the [[Battle Café]].
* At the [[Hulbury]] station, a {{tc|Schoolboy}} mentions that it should be possible to [[Battle Subway|battle on board the trains]], like in [[Unova]].
* The [[Dream Ball]], previously exclusive to Unova's [[Entralink|Entree Forest]], can be obtained from the [[Ball Guy]] at [[Wyndon Stadium]].
* A man in one of [[Wyndon]]'s [[Pokémon Center]]s mentions that he's from Unova.
* [[Ingo]], one of the {{tc|Subway Boss}}es of Unova, appears as a [[warden]] in [[Hisui]], having been [[Time travel|transported back in time]] to [[Pokémon Legends: Arceus]]'s time period. He mentions having faint memories of {{p|Chandelure|his former partner}} and [[Emmet|a man who looked like him]].
====To Generation VI====
* [[Lumiose Galette]] and [[Shalour Sable]] are possible rewards the player can win at the [[Battle Café]].
* A {{tc|Swimmer}} on {{rt|9|Galar}} says that swimming experts can swim from [[Galar]] to [[Kalos]].
* If the player character is {{ga|Rei|male}}, their default shirt in [[Pokémon Legends: Arceus]] is one from {{g|X and Y}}.
====To Generation VII====
* Two [[Non-player character|NPCs]] at the [[Meetup Spot]] train station will notice if the player has played [[Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!|Pokémon: Let's Go, Pikachu! or Let's Go, Eevee!]], referring to it as a "Let's Go experience", and give the player a {{p|Pikachu}} (if the player has [[Save data bonus|save data]] of Let's Go, Pikachu!) and an {{p|Eevee}} (if the player has save data of Let's Go, Eevee!).
* A woman in [[Motostoke]] mentions that she came from [[Alola]] to see the [[Galar League|Gym Challenge]].
* [[Big Malasada]] and [[Pewter Crunchies]] are possible rewards the player can win at the [[Battle Café]].
* After being defeated, a {{tc|Café Master}} compares his battle with the player to a type of drink. The drinks he can mention are the same ones that can be drank at Alola's [[Pokémon Center Café]]s.
* An NPC in [[Hammerlocke]] mentions that {{p|Meowth}} in Galar look different from Meowth in [[Kanto]] and Alola.
* After becoming {{pkmn|Champion}}, the player can obtain a [[Beast Ball]] from the bargain shop keeper at [[Stow-on-Side]]. More can also be obtained from the [[Ball Guy]] by winning a tournament at the [[Wyndon Stadium|Pokémon League]].
* On the [[Isle of Armor]], the player encounters {{tc|Hiker}} who mentions having caught 151 {{rf|Alolan}} {{p|Diglett}} in Alola, but they escaped across the island. He asks the player's help in finding them, rewarding them with other Pokémon he met in Alola, mostly Alolan forms, whenever they've found a certain amount of Diglett.
* [[Mustard]] can be seen playing [[Pokémon Quest]] in the [[Master Dojo]].
* {{p|Tauros}}'s [[Pokémon Sword and Shield|Pokémon Sword]] [[Pokédex]] entry mentions the Tauros in Galar being too wild to be ridden, referencing the use of Tauros as [[Poké Ride|Ride Pokémon]] in Alola.
* In [[The Crown Tundra]], an [[Ultra Wormhole]] brings [[Ultra Beast]]s to the [[Max Lair]].
* [[Legendary Clue?]] mentions Ultra Wormholes being first discovered by [[Mohn|Professor Mohn]].
* [[Peonia]] mentions that the scientist running the Max Lair used to work at a {{DL|Heahea City|Dimensional Research Lab|laboratory in Alola}}. She also mentions wanting to visit Alola to taste [[malasada]].
* When the player gains the ability to ride {{p|Wyrdeer}}, [[Professor Laventon]] compares it to Alola's Ride Pokémon.
* As part of a [[Task#Requests|request]], the player has to look for five lost {{rf|Alolan}} {{p|Vulpix}} at the [[Alabaster Icelands]]. The man who gives the request says he's from Alola.
===Generation IX===
====To Generation I====
* Several food vendors around [[Paldea]] mention they're from [[Kanto]].
* The Pika-Vee Case for the player's [[Rotom Phone]] features the {{game|Yellow}} sprites of {{p|Pikachu}} and {{p|Eevee}}, possibly referencing the first {{ga|Blue|rival}} battle of the game.
* The [[Monstrous Tablecloth]]'s description mentions that it was designed by members of the [[Pewter Museum of Science]].
* The {{type|Ghost}} [[Terastal phenomenon|Tera Jewel]] resembles the sprite of a {{OBP|ghost|Pokémon Tower}} from [[Generation I]].
* The [[Alfornada]] observatory, which also houses the town's battle court, is decorated with images of Generation I menu sprites.
* Roman the {{tc|Black Belt}} in [[South Province (Area Five)]] says "Hoo hah!" when the player challenges him. After being defeated, he says he's imitating a martial artist he idolizes. This a reference to [[Bruno]], who [[Bruno/Quotes|uses the same phrase]] before being battled.
* A [[Safari Ball]] is obtainable as a milestone reward while completing the [[List of Pokémon by Blueberry Pokédex number|Blueberry Pokédex]]. Its item description mentions the {{safari|Kanto}} in Kanto.
====To Generation II====
* One of each of the [[Apricorn]] [[Poké Ball]]s is obtainable as a milestone reward while completing the [[List of Pokémon by Paldea Pokédex number|Paldea Pokédex]].
* The music options that can be played while the player is taking a photo with their [[Rotom Phone]] include remixed versions of the [[Johto]] [[wild Pokémon]] battle theme, the [[Radio#Pokémon Music|Pokémon March]], and the [[Radio#Pokémon Music|Pokémon Lullaby]].
* [[Perrin]] gives the player a [[Sport Ball]] during [[The Indigo Disk]] [[The Hidden Treasure of Area Zero|expansion]] for completing her side quest. Its item description mentions the [[Bug-Catching Contest]] in Johto.
====To Generation III====
* For the [[Cascarrafa Gym]]'s Gym Test, the player must buy [[Kofu]] rare [[Hoenn]]ian {{wp|wakame}} seaweed at an auction at [[Porto Marinada]] to be used as a cooking ingredient.
* One of the dishes served at [[Medali]]'s Treasure Eatery is described as a recreation of a recipe that the restaurant's head chef encountered in Hoenn.
====To Generation IV====
* A [[Safari Ball]] is obtainable as a milestone reward while completing the [[List of Pokémon by Blueberry Pokédex number|Blueberry Pokédex]]. Its item description mentions the [[Great Marsh]] in [[Sinnoh]].
====To Generation V====
* A [[Dream Ball]] is obtainable as a milestone reward while completing the [[List of Pokémon by Paldea Pokédex number|Paldea Pokédex]].
* The shirt worn by {{tc|Poké Maniac}}s features the [[Pokéstar Studios]] logo.
* [[Blueberry Academy]], the sister school of [[Naranja Academy]]{{sup/9|S}}/[[Uva Academy]]{{sup/9|V}}, is located in [[Unova]].
* Many music themes used at Blueberry Academy are remixed versions of themes from {{4v|Black|White}}.
* [[Lacey]] is the daughter of [[Clay]], while [[Drayton]] is the grandson of [[Drayden]].
* [[Crispin]], Lacey, [[Amarys]], and Drayton's respective hometowns are [[Virbank City]], [[Nimbasa City]], [[Castelia City]], and [[Opelucid City]].
* Castelia City's theme is one of the unlockable background themes for the [[League Club Room]].
* The monochrome design of the League Club Room is colored black and white, referencing the names of the [[Generation V]] [[core series]] games. In addition, this version of the room features paintings of [[Skyarrow Bridge]], [[Black City]], and [[White Forest]], as well as a model of Nimbasa City's {{DL|Nimbasa City|Rondez-View Ferris Wheel}}.
* The futuristic design of the League Club Room features several references to the [[Big Monster Series|Big Monster]] and [[Invaders Series]] from Pokéstar Studios.
* When met in the League Club Room, [[Brassius]] mentions how there is [[Burgh|another type specialist working as an artist]] in Unova. In a later conversation, he mentions he visited [[Castelia Gym|their art gallery]] in Castelia City, which was filled with [[:File:Castelia Gym B2W2.png|silky cocoons]].
* When met in the League Club Room, [[Larry]] asks the player if he should try out [[Village Bridge#Village Bridge Restaurant|Berry sandwiches]] or [[Casteliacone]]s. Following the player's recommendation, he tries out one of them in-between visits to Blueberry Academy.
* When met in the League Club Room for the third time, [[Raifort]] mentions she visited the [[Abyssal Ruins]] in-between visits.
* The [[Chargestone Cavern]] is highly similar to the [[Chargestone Cave]] in both name and appearance, featuring the same kind of blue, electrified, and occasionally floating rocks.
* A plateau in the [[Terarium]]'s [[Canyon Biome]] has the same layout as the [[Nature Preserve]]. Similar to the Nature Preserve, this area also houses a {{p|Haxorus}} as a fixed encounter.
* One of the requirements for encountering {{p|Meloetta}} in the [[Coastal Biome]] is selecting the Sepia filter on the player's [[Rotom Phone]] camera. This is a reference to the Meloetta event in Black, White, Black 2, and White 2, where the {{tc|Musician}} who teaches Meloetta {{m|Relic Song}} at {{DL|Castelia City|Café Sonata}} mentions recalling the melody from his "sepia-toned memories".
====To Generation VI====
* The Meditative Seat, Heterarchical Loop, and Paradoxical Popper [[Secret Base|Super-Secret Base]] [[decoration]]s from {{g|Omega Ruby and Alpha Sapphire}} can be found on display at [[Artazon]].
* {{pal|Sushi High Roller}}s, which {{DL|Lumiose City restaurants|Sushi High Roller|originated}} in [[Kalos]], can be found across [[Paldea]].
* {{p|Roaring Moon}}'s [[Pokédex]] entry from {{pkmn|Scarlet and Violet|Pokémon Violet}} states that it's speculated to have a connection to "a phenomenon that occurs in [[Hoenn|a certain region]]", referencing [[Mega Evolution]].
* [[Atticus]] can sell the player replicas of the [[Emma|Expansion]], [[Magma Suit|Magma]], and [[Aqua Suit]] helmets at [[Porto Marinada]].
* [[Pokémon Legends: Z-A]] takes place in [[Lumiose City]] and features Mega Evolution.
====To Generation VII====
* In [[Nemona]]'s house in [[Cabo Poco]], there is a painting that appears to reference {{fd|Greninja|Ash-Greninja}}, even though Ash-Greninja is not present in [[Pokémon Scarlet and Violet]] due to a change in the way its {{a|Battle Bond}} [[Ability]] works.
* Images of [[Akala Island]] and the [[Altar of the Sunne]]/[[Altar of the Moone|Moone]] appear in [[Salvatore]]'s languages classroom.
* After being defeated, [[Iono]] references the [[Z-Move]] {{m|10,000,000 Volt Thunderbolt}}.
* A book in the [[Naranja Academy]]{{sup/9|S}}/[[Uva Academy]]{{sup/9|V}} entrance hall mentions [[Pewter Crunchies]].
* A [[Beast Ball]] is obtainable as a milestone reward while completing the [[List of Pokémon by Paldea Pokédex number|Paldea]] and [[List of Pokémon by Blueberry Pokédex number|Blueberry Pokédexes]].
* One of the [[Shaved Ice Stand|shaved ice]] flavors available at [[Kitakami]] is named "Alola Blue".
* If the player has [[save data bonus|save data]] from [[Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!|Let's Go, Pikachu! or Let's Go, Eevee!]], a woman in [[Mesagoza]] mentions the player adventuring in [[Kanto]] and the phrase "Let's Go!", before giving the player a phone case featuring {{p|Pikachu}} and {{p|Eevee}}.
* A {{tc|student}} at [[Blueberry Academy]] can teach the player the "Be Still, My Left Hand!" emote, which could be a reference to the pose that [[Gladion]] makes during battles.
** Another student in the same academy can teach the player the "[[Electrium Z]]" emote, which has the player perform the {{type|Electric}} Z-Move pose.
* [[Atticus]] can sell the player replicas of [[Aether Foundation|Aether]] uniform shoes, [[Ultra Recon Squad]] glasses, and [[Ryuki]]'s gloves at [[Porto Marinada]].
====To Generation VIII====
* Images of [[Professor Laventon]] and a [[Hisui]]an {{hi|Poké Ball}} appear in [[Raifort]]'s history classroom.
* A woman in [[Mesagoza]] will grant the player various [[Rotom Phone]] cases if the player has any [[save data bonus|save data]] from a [[Nintendo Switch]] game:
** If the player has save data from {{pkmn|Sword and Shield|Sword or Shield}}, she makes a reference to [[Dynamax]]ing, before giving the player a phone case modeled after the [[Ball Guy]].
** If the player has save data from {{pkmn|Brilliant Diamond and Shining Pearl|Brilliant Diamond or Shining Pearl}}, she references the [[Grand Underground]] and [[Super Contest Show]]s, before giving the player a phone case based on a [[Pokétch]].
** If the player has save data from {{pkmn|Legends: Arceus}}, she makes references to Hisui and the [[Arc Phone]], before giving the player a phone case modeled after said phone.
* A copy of ''[[Sonia's Book|Galar: A History]]'' can be found at [[Naranja Academy]]{{sup/9|S}}/[[Uva Academy]]{{sup/9|V}}. It describes the destruction of the [[Stow-on-Side]] mural during the events of [[Pokémon Sword and Shield]].
* A {{tc|student}} at the Paldean academy's cafeteria mentions [[curry]].
* [[Penny]] is mentioned to be from [[Galar]].
* {{p|Corviknight}} and {{p|Tinkaton}}'s [[Pokédex]] entries reveal that, unlike in Galar, Corviknight is unable to serve as the [[Flying Taxi]] Pokémon in [[Paldea]] due to Tinkaton's habit of attacking it mid-flight.
* [[Perrin]] mentions that her ancestors come from [[Sinnoh]] back when it was called Hisui. At one point, she also uses [[Adaman]]'s catchphrase, "Time wasted is lost", which she says is a saying passed down in her family, confirming her as Adaman's descendant. She also takes the player to a photo survey to find a {{fd|Ursaluna|special}} {{p|Ursaluna}}, during which several themes from Legends: Arceus can be heard.
* [[Atticus]] can sell the player a replica of [[Marnie]]'s [[bag|backpack]] and a helmet modeled after the Ball Guy at [[Porto Marinada]].
* One of the [[Poké Ball]]-[[Battle style (game mechanic)|throwing styles]] the player can unlock in the [[League Club Room]] is that of the former Galar {{pkmn|Champion}} [[Leon]].
* If the player shows a Pokémon with the [[Mark|Mightiest Mark]] to a student in Blueberry Academy's School Store, he will teach them Leon's signature {{p|Charizard}} Pose.
* [[Jubilife Village]]'s theme is one of the unlockable background themes for the League Club Room.
* Near the beginning of [[Mochi Mayhem]], Penny gets irritated during a phone call with her father by his use of the word "Adven-tour" and describes him as "ultra-mega-annoying" afterwards. This heavily implies that her father is [[Peony]], as he uses the same word and prefix in [[Peony/Quotes|his dialogue]].


==Related articles==
==See also==
* [[List of cross-canon references]]
* [[List of cross-canon references]]



Latest revision as of 04:43, 29 March 2024

175Togepi.png This article contains fan speculation.
There is no solid evidence for or against some parts of this article.

The nine generations of Pokémon games, taking place in the same universe, have had multiple references to each other. Not only do the games reference their same-generation counterparts (with the player's default name being the version played and the rival's being the counterpart version in the first two generations), but games released later in the series typically will feature references to events of past generations.

This does not include Pokémon. While Pokémon released in previous generations will always appear, they are not a reference to the generation itself.

List of references

Generation II

To Generation I

Generation III

To Generation I

To Generation II

Generation IV

To Generation I

The wallpaper
  • As a direct tribute to the original games, one of the wallpapers has been designed to resemble the design of the routes of the first games, complete with the graphics and sprites when the games are played on the Game Boy. The wallpaper showcases typical features like both types of fences, low and high grass, normal ground, a signpost and a house.
  • When visiting the Villa, Roark wonders if he could make the Underground extend to Kanto and Johto.
  • As Pokémon HeartGold and SoulSilver are remakes of Pokémon Gold and Silver, the references present in the original games to Generation I return.
  • During a special Celebi event, the player will, in fact, travel in time back to shortly after Red has defeated Giovanni. Giovanni tells his son that he has decided to disband Team Rocket. Afterwards, he will run towards the Johto region and is found in a cave. When the player defeats him, he will make a remark that the player reminds him of the boy that made him disband the team in the first place.
  • In Pokémon HeartGold and SoulSilver, a man mentions that Professor Oak once said there were 150 Pokémon, the amount known during Generation I, although there are now over 400 (this implies that the Johto games, or at least their remakes, take place at the same time as the Sinnoh games).

To Generation II

To Generation III

Generation V

To Generation I

To Generation II

To Generation III

To Generation IV

Generation VI

To Generation I

To Generation II

To Generation III

To Generation IV

To Generation V

To Generation VII

Generation VII

To Generation I

To Generation II

  • Heahea City was said to be formed by people who traveled from Kanto and Johto long, long ago and came together in the Alola region.
  • Malie City was also said to be formed by people from Johto settling in Alola.
  • Malie Garden also has a lake inside of it in the shape of a Gyarados, an allusion to the Lake of Rage in Johto.
  • A Sightseer in Malie City mentions that she is from Johto and finds it odd that people in Alola don't use Fly to travel, before giving the player the TM for the move.
  • Lana mentions having reeled in a Red Gyarados once. In the end, she was just trying to trick the player into believing her.
  • A poster within the Geothermal Power Plant on Blush Mountain mentions the Kanto Power Plant and how a Machine Part being stolen from there once put the entire plant out of operation, referencing the post-game events of the Johto games.
  • On Mount Lanakila, Professor Kukui mentions facing the Indigo League and how tough the battle with Lance was. Lance was the Champion of the Indigo League in the Generation II games and their remakes.
  • The player is able to obtain one Apricorn Ball each per game. These are the special Poké Balls that Kurt makes by hand in the Johto region. In Ultra Sun and Ultra Moon, the player can also receive one of each Apricorn Ball from a Game Freak employee in Heahea City by showing him a Pokémon from a Virtual Console version of a Generation II game.
  • A Rage Candy Bar is given to the player in Pokémon Center Cafés when buying a drink for the first time on Tuesdays.
  • In Ultra Sun and Ultra Moon, Gladion travels to Kanto and Johto to train.
  • In Ultra Sun and Ultra Moon, a Gentleman in the Akala Ferry Terminal in Heahea City mentions Kurt and the rare GS Ball, claiming that its name stands either for the "greatest smith's ball" or "Gold-Silver Ball".
  • In Detective Pikachu, Mewtwo is mentioned to possess the Berserk Gene, which was also a Generation II-exclusive item heavily related to Mewtwo. It is used to make a drug called "R", which temporarily boosts a Pokémon's power while also causing them to go berserk, referencing the Berserk Gene's effect of boosting a Pokémon's Attack upon consumption, while also confusing it.
  • After Giovanni has been defeated at the Viridian Gym and he's left to train alone, Blue takes charge of the Gym himself, just like he had done in Generation II. In addition, when he's challenged for a rematch during the post-game, he mentions how he's planning to remodel the Gym, which he's seen to have done in Generation II.
  • After being defeated in a rematch, Sabrina mentions how she won't be facing another challenger like the player for three years, referencing the three-year gap in-between the events of Kanto and Johto games and her future battle against the Johto player character.
  • After being defeated in a rematch, Koga mentions how he has plans to join the Elite Four, which he's accomplished by the time of the Johto games. From the second rematch onward, he will also mention his daughter before the battle.
  • From the second rematch onward, Blaine mentions that the Cinnabar Volcano is being active lately in his pre-battle dialogue. In addition, a news flyer at the Cinnabar Pokémon Center warns people of the possibility of a volcanic eruption. These are references to the eruption of the Cinnabar Volcano, which occurs before the events of Generation II and devastates most of Cinnabar Island.

To Generation III

To Generation IV

To Generation V

To Generation VI

Generation VIII

To Generation I

To Generation II

  • Rage Candy Bar is one of the rewards the player can win at the Battle Café.
  • The Ball Guy gives the player one of each kind of Apricorn Poké Ball over the course of the game. More can also be obtained from him by winning a tournament at the Pokémon League.
  • Apricorns can be found and turned into Apricorn Poké Balls on the Isle of Armor.
  • The Cram-o-matic can sometimes give the player a Sport Ball. Its description mentions the Bug-Catching Contest in the Johto region.
  • Like in Johto, Apricorns are used as crafting materials for Poké Balls in Hisui.
  • During Request 67: "The Clefairy's Moonlit Dance", a Galaxy Team member mentions that Clefairy dance during the full moon where he comes from, likely referencing the Clefairy dance at Mt. Moon Square. When the player witnesses Clefairy dancing during the request, a remix of the theme that plays during the Clefairy dance in Generation II is heard. Just like in Generation II, the Clefairy also leave behind a Moon Stone while running away.

To Generation III

To Generation IV

To Generation V

To Generation VI

To Generation VII

Generation IX

To Generation I

To Generation II

To Generation III

  • For the Cascarrafa Gym's Gym Test, the player must buy Kofu rare Hoennian wakame seaweed at an auction at Porto Marinada to be used as a cooking ingredient.
  • One of the dishes served at Medali's Treasure Eatery is described as a recreation of a recipe that the restaurant's head chef encountered in Hoenn.

To Generation IV

To Generation V

To Generation VI

To Generation VII

To Generation VIII

See also