From Bulbapedia, the community-driven Pokémon encyclopedia.
- For the female character from the Pokémon Adventures manga who is known as Blue in Japan, see Green (Adventures).
Blue Oak (Japanese: オーキド・グリーン Green Okido) is a main character in the manga series Pokémon Adventures. He is the grandson of Professor Oak.
Blue has a serious, calm, and focused personality in everything he does. Although Red and Blue were once bothered by each other because their personalities are so opposite, they ended up resolving their differences.
Blue and his Scyther were trained by Chuck of Cianwood City when he was a child. Thus, Blue has some cursory knowledge of martial arts, and his Scyther knew Generation II techniques.
Blue's special skill, as described by Professor Oak, is Pokémon training—that is, leveling them up and making them strong, and as such is referred to as the "Trainer" (Japanese: 育てる者 Trainer).
Blue also has a rivalry with Koga of Team Rocket. This began when Blue almost killed Koga's Arbok by having his Charmeleon cut it in two, and continued on throughout the series until Koga's reclusion.
Blue in the first chapter
Blue was first seen by Red when he was battling a Mew with his Charmander, only to recall it after he thought it was too strong for him. This angered Red to a point that he decided to challenge Mew himself, only to be quickly defeated. Blue then told Red that he needs to know when he's outmatched and leaves. He then encounters Blue again who is attacking any Pokémon he sees to tell if they are worthy of catching, accidentally hitting Red's Poli in the process, but eventually the Pokémon he wanted to capture in the first place appeared, Kangaskhan, however it got away after Red healed the baby Kangaskhan who had been poisoned by a Poison-type Pokémon. It is this incident where a rivalry develops between these two. He is next seen in Pewter City with intent on challenging Brock and is later seen battling him with his newly evolved Charmeleon. He then goes to the Pokémon Tower after meeting Mr. Fuji, only to be caught under the control of the Gastly, until Red defeats them and frees him. The two of them eventually run into Koga, who has been controlling the Gastly this whole time, however Blue eventually has his Charmeleon cut Koga's Arbok in half, making Koga swear a personal vendetta against him.
During the course of their adventures, Red and Blue accidentally traded Pokémon, including his new Porygon, which the man at the front desk of the Game Corner said would be very difficult to train since he didn't catch it himself. This caused Blue's Machoke to evolve, and Blue took the opportunity to teach Red's Pokémon more exotic, varied, and useful moves. Red's training on Blue's Pokémon made them more playful and lighthearted, something that greatly annoyed Blue.
After he unsuccessfully tries to enter Saffron City, he returns to Pallet Town to tell Red about the barrier. He tells Red that he believes from a picture he took that Saffron City is Team Rocket's hideout, and Blue in turn learns that his grandfather is missing. He then tells Red that since it is his grandfather that is missing, that he should be the only one to save him, and wants him to back off, although Green finally convinces the two of them to work together. They get separated in Silph Co. and ends up running into Koga on 2F, who, instead of allowing Blue to reach his Poké Balls, subdues him with his Muk. He tells Blue that rather than kill him on the spot, he wants to use him to get his grandfather to cooperate with them, to which Blue refuses. He then takes a Razor Wind to the chest and is seemingly rendered incapable of moving. When Red appears after defeating Lt. Surge, Koga traps him too. Blue reveals that he was really wearing a reflective pendant given to him by Oak and that allowed him to have his Pidgeot attack Koga before he could kill both of them. Koga then calls his Articuno and freezes the two of them, only for Koga to realize that Blue previously called out his Charizard to keep the room warm enough for them to melt the ice. Koga was then subsequently defeated. Green then took Koga's Soul Badge and gave it to Red. They split up, Red to help Green, and Blue to save his grandfather, who was trapped in the basement, which he found out using Koga's Golbat. He finds his grandpa and realizes that all of the people from Pallet Town are tied up just a floor below them. He comes back in order to help Red and Green fight Sabrina and Thu-Fi-Zer, and, after Red's Saur evolves and Green's Clefairy evolves into a Clefable, they defeat Sabrina and Thu-Fi-Zer is split.
At the Pokémon League tournament, Red's Venusaur barely defeats Blue's Charizard. This tames their rivalry as the two finally begin to respect each other, and begin to become friendly rivals.
Blue's cockiness becomes subdued as the story continues, and his personality becomes less mocking and more aloof and quiet. He is also able to rely on instinct more and constantly adapt his strategy. He often becomes flummoxed by Green's hyperactive meddling in everyone's affairs.
Blue in the second chapter
In the Yellow chapter, Blue is first seen defeating a Gastly that all of the good Gym Leaders and Yellow were fighting. He then reveals that it had belonged to Agatha whom he had battle previously at the Kanto Power Plant due to the grudge she has toward his grandfather. He then says that he had cut off all contact with him just so nobody could listen in. Before he leaves Yellow wishes to train with him, which he allows.
Younger Blue under Chuck's training
Then he recalls to Yellow the time when he battled against Agatha. It was back during the time of the first chapter when Red was battling Giovanni. Blue had just caught a Lapras that another boy named Evan was eyeing because he wanted a strong Pokémon so he could enter the Power Plant to save his Haunter which disappeared into there. He talked to his grandfather and he had heard similar rumors so Blue decided to investigate. He defeated several Magneton along the way before he finally encountered Agatha. After Evan let it slip that Blue was Oak's grandson she decided to destroy him instead of toy with him like she had planned initially. She had her Gengar use Hypnosis on him and then use Dream Eater to drain his power. His dream was of when he was training with Chuck and he made him do things without the help of his Pokémon and after he complained, Chuck made him realize that not only must a Pokémon be strong to defeat an opponent, but so must a Trainer. He then has his Golduck transfer his thoughts into his Pokédex for Evan to read and have him learn the same lesson, so he could rescue his Haunter which was in Poké Ball behind Agatha so its attack would disrupt Gengar's Dream Eater. This plan works and after Blue escapes, Agatha disappears before he could get any answers on how she knows his grandfather.
He tutors Yellow in more intense strategies for battles. It is during this training that Blue learns that Yellow doesn't know the basics of Pokémon. All of her Pokémon were given to her, she didn't know what moves Ratty knew and cried when it evolved since she didn't think it was Ratty anymore, and couldn't catch a simple Caterpie because she didn't want to hurt it so Blue had to catch it for her. He later teamed up with Yellow to defeat an entire pack of Mankey but when it became clear that Yellow could not defeat the leading Primeape he took it upon itself to defeat it with his Porygon. Yellow then goes off to continue training on her own.
He then appears to Blaine at Cerise Island and the two of them try to take on the Elite Four, only for them to run into the three Rocket Admins, Koga, Lt. Surge, and Sabrina.
Later, he is paired up with Koga by Sabrina's Spoons of Destiny. Before he finds an opponent, he returns Golbat to Koga, which he had kept with him ever since the incident at Silph Co. The pair of them fight Agatha of the Elite Four once again but, during the battle, Blue and Golbat are separated from Koga. Agatha's Haunter then paralyzes Blue by using Lick on his eyes. He is forced to use Koga's Golbat once again, applying its echolocation to realize that there was another Golbat coming at him. After a while of evading the Golbat, Koga started throwing shuriken balls containing Paralyze Heals, one of which got to Blue and he was able to rejoin the battle, and defeat Agatha. Although it turns out that Agatha wasn't really defeated and was actually having her Gengar become Koga and Blue's shadow and was slowly sucking the life out of them and due to Koga's quick loss of blood Gengar was able to get away with this for a moderate time. They figured it out, however, and it was defeated.
Blue in the third chapter
Blue first appears in the third chapter to take on the role of the Viridian City Gym Leader after Red declines the offer of the position. After capturing several Pokémon that were attracted to the Gym because of the Pokémon March Radio that was being played, he is given the title without the need for proper registration. He informs Red of a way to heal the frostbite that he had gotten from Lorelei's ice cuffs and lets him borrow his Charizard to help him get there easier. He also mentions Sabrina possibly being there, also healing her frostbitten wounds.
Later, Blue, along with the Kanto and Johto Gym Leaders, travel to Indigo Plateau to take part in the tournament being hosted there. Picking the white Apricorn that determines the match up, Blue is put against his old master, Chuck. While waiting in his room for his match, he gets a call telling him that his match is coming up and contemplates about Red giving him his Gyara for his Charizard. He feels a powerful wave of heat and leaves the room to find Silver attacking him.
Believing that the other was the one who had created the intense heat, they have a brief battle that ends when they find the real culprit, an Entei. They battle the Entei with their Gyarados but it attacks with a Flamethrower and disappears.
He tells Daisy about what happened and goes to his match against Chuck after Silver runs away. Having flashbacks to the time when they train together, Blue battles and eventually defeats his former master with his newly trained Rhydon.
Once Team Rocket attacks Indigo Plateau, Blue, along with the other Gym Leaders, attack the grunts to try to prevent them from leaving the Magnet Train. As the Magnet Train speeds off in order to get the Gym Leaders away from the stadium, they are all rescued by the now-healed Red. While the Gym Leaders fight off the remaining grunts, Blue and Red go ahead on Blue's Rhydon and head back to the Stadium. While digging, they are encountered by their old enemies, Bruno and Koga who help them dig through the rock and reveal the plans of the Masked Man.
Following Red's spoon of fate, they end up in the Ilex Forest where they witness Green battling Karen and Will with her recently captured legendary birds. Blue and Red join the fight by taking command of Zapdos and Articuno, respectively. After a long battle, the two legendary Pokémon are calmed down by the efforts of many Pokémon sent by the people of Kanto and Johto to help them.
With Ho-Oh and Lugia gone, Blue, Red, and Green go to battle the Masked Man and are joined by Silver, Yellow, and Crystal. As the battle continues, the Masked Man uses his powers to freeze the Pokédex holders in a block of ice. After a combination of the water from Mt. Silver and the powerful flames of Entei, Blue and the others are freed from their icy prison and use their powers to help Gold, who has gone inside of the Ilex shrine to battle the Masked Man from inside.
After the Masked Man is defeated, Blue attempts to arrest Silver for his previous thefts of Professor Oak's Pokédex and Professor Elm's Totodile. Before he can, Gold suddenly reappears and shows a fake picture that he previously made and states that Silver is not the one on the picture and thus, isn't the one who had done those crimes.
Blue in the fifth chapter
Blue and Red are seen in the fifth chapter going to Professor Oak's lab at his request. Instead of finding the Professor there, they find a Fame Checker with a message telling them to return their Pokédexes. After returning the Pokédexes, they head to Vermilion City and board the Seagallop Ferry and meet up with Bill again.
After some exploring, they find Green being attacked by an invisible Pokémon and attempt to rescue her. While Red saves Green, Blue attempts to attack the unknown Pokémon but it disappears before he can hit it. They take the unconscious Green to a Pokémon Center and find out that she was going to the Sevii Islands to meet up with the parents she was taken from when she was a child. Feeling that in order to beat the new enemy, they will need to become stronger and they are both attacked by the old woman of Cape Brink, Ultima who aims to help them become stronger.
After some reluctance, they accept the offer and travel to Ultima's home to begin their training. After going through the first of the two trials they need to perform before the training can start, the two are shocked to find out that the third and last trial involves them battling each other. The two begin battling and neither are intending to lose the battle. Eventually, the battle ends in a tie and both Saur and Charizard end up learning the ultimate moves Frenzy Plant and Blast Burn, respectively.
They find Ultima being attacked by the creature that had attacked Green earlier and attempt to use their new skills to defeat it but miss due to a lack of practice. After it is revealed that the Pokémon was actually Green's Ditty on disguise, Blue asks the Transform Pokémon to use its shape shifting abilities to transform into the unknown Pokémon once more, this time figuring out that it can transform. They are called by Bill to go to the Icefall Cave on Four Island and get the Vs. Seeker from him.
They find out that the mysterious Pokémon may in fact be controlled by Giovanni and are encountered by Lorelei, who wishes to help them fight against Team Rocket. Just then, they are attacked by Carr, a member of the Three Beasts along with his teammates, Sird and Orm. They manage to escape from their grasp thanks to Lorelei but find out that the Three Beasts have put a hit out on the Kanto Pokédex holders and that they will destroy the Sevii Islands if they aren't brought to them.
Red goes to battle Carr on Five Island while Lorelei goes to Seven Island to battle Sird; Blue goes to Six Island to battle Orm. While they battle, Blue is overrun by Orm's Shuckle and he is told that they have Professor Oak held captive. The battle continues and Blue manages to defeat Orm and his Shuckle army. Hoping that Red may have gotten information on his missing grandfather, Blue flies on his Charizard to Five Island but is nearly shot out of the sky by the Speed Forme of Deoxys.
Due to his painful defeat by the hands of Deoxys, Red becomes depressed, Green goes to try to cheer him up while Blue tells the rest of the group about his Grandfather's kidnapping. After Green finishes learning the third ultimate move, Hydro Cannon, and Red breaks out of his stupor, the group goes to defeat Team Rocket, this time with a new unexpected teammate, Mewtwo. They travel to Trainer Tower and find Professor Oak and Green's parents tied up on top of the roof.
When Blue and Green try to rescue them, it is revealed that they were only 3-D images and they are captured by mechanical arms before being rescued by Mewtwo. Mewtwo points the way to the real versions of Professor Oak and Green's parents and Blue uses his Pokémon to try to free them. Before he can, Trainer Tower's mother computer, "R", attacks them and stops his Pokémon in their tracks. Blue manages to defeat R with his Porygon2, infiltrating its computer network while freeing Professor Oak and Green's parents in the process.
Soon after, they are attacked by a small army of Deoxys clones and they are forced to fight them off. They are then confronted by Giovanni who traps Mewtwo in a binding armor and sends the Deoxys clones to attack them. Blue attempts to attack Giovanni but he is just knocked back to the ground while Giovanni leaves to let the Deoxys clones to kill them. While Green and Professor Oak go and build the new Pokédex and Kimberly takes Green's parents to safety, Blue and Red are forced to fight off the Deoxys clones.
Blue manages to connect with Mewtwo, thus having the ability to read its thoughts; this allows him to come up with a plan to free it from the M2Bind. Using the power of the three ultimate moves, Frenzy Plant, Blast Burn, and Hydro Cannon, Blue, Red, and Green manages to free Mewtwo from the M2Bind, allowing it to destroy R afterwards. Due to the previous battle being too exhausting, Blue lends his Charizard to Red so that he can chase after Giovanni and receives the new model Pokédex from Green.
Later, Blue and Green witness the Team Rocket airship being blown up and set to crash into Vermilion City and rush to try to contain the damage. They find Silver and Giovanni surrounded by the flames of the rubble from the airship; Blue uses his Rhydon to rescue them. Although Silver thanks Blue for saving him, he states that he hates his father and Blue should've left Giovanni to die in the fire. Blue manages to convince Silver to change his mind after telling him about his past hatred of being the grandson of Professor Oak and how he is now proud to be called that. After Mewtwo and Yellow fall to the ground after being sent there by Red and Deoxys, Blue and Green notice the airship is about to crash and use their Pokémon to try to cushion the damage.
Eventually, their Pokémon are unable to hold the airship and further and it crashes into Vermilion City. Luckily, the airship is moved by an unknown force and floats to the ground safely; Blue and the other Pokédex holders are seen joining together in their victory. After Deoxys thanks Red for his help and takes off to a faraway region, they are approached by Sird, who had previously fallen off the airship after Carr took it over and tried to crash it into Vermilion City. Sird attempts to capture Deoxys but Red, Blue, Green, Silver, Mewtwo, and Yellow (who was being held by Red) jump in front of the beam and are turned into stone as a result. He, along with the other four who were turned to stone, were shipped to the Battle Frontier in a box by Professor Oak to be revived.
For the most part of this chapter, he, along with four other Pokédex holders, remained turned into stone. It was only at nearly the end of the chapter that he and the others were liberated by Emerald with the help of the wish-granting Mythical Pokémon Jirachi.
Once revived, Blue and the others find out that they are currently in a battle against the evil Guile Hideout and his Kyogre-shaped monster called the "Sea Demon" that he created with the power of Jirachi. Blue and the other nine Pokédex holders fight off Guile's army of rental Pokémon before being flooded by the power of the Sea Demon. After Gold and Red destroy Guile's armor, Blue and the others are seen with their Pokémon, ready to destroy the Sea Demon. With the combined powers of the four ultimate moves, Hydro Cannon, Blast Burn, Frenzy Plant, and Volt Tackle, they manage to blow up the Sea Demon, defeating it once and for all.
The next day, after Guile is finally defeated, Blue and the others celebrate their victory and joins in a Battle Dome tournament that was suggested by Red, however, neither his victories or losses are known.
In High-tailing It from Haunter, Blue was briefly seen together with the other Pokédex holders from Kanto, Johto, and Hoenn when the Advanced level Grunt was talking to Diamond about the Pokédex.
In Double Trouble with Dialga and Palkia IV, at the Spear Pillar, Sird told the Team Galactic Commanders about how she escaped from Red, Blue, Green, Yellow, and Silver by turning them into stone with her Darkrai.
Blue in the ninth chapter
It is revealed that the Rhyperior that Silver is shown to possess is in fact, Blue's Rhydon evolved after they traded. Blue was shown in his updated design and to have gone with Silver to find Giovanni after the Pokédex holders' victory in the Battle Frontier against Guile Hideout; however, Giovanni was nowhere to be found due to the fact that more than three months had passed between the time they were petrified and freed.
Here, it is revealed that in the past, Blue became one of Gurkinn's disciples in learning the art of Mega Evolution. Blue first appears in the twelfth chapter at Geosenge Town, watching the battle between Xerneas and Yveltal end in a ceasefire due to the Legendary Pokémon being equal in strength. As Xerneas and its allies leave the area, he wonders if the battle between the two Pokémon could end if "Z" truly exists. Blue meets with Diantha, an old acquaintance of his from his earlier trip to Kalos. Blue reveals to Diantha that he was told of Xerneas and Yveltal's awakening and is currently searching for "Z", which is the Legendary Pokémon Zygarde. After Diantha agrees to help Blue on his quest, the two set off to search for clues.
After some traveling, Blue and Diantha meet with X and Y, the Pokédex holders of the Kalos region. After helping X capture a wild Pinsir, Blue and Diantha head to the Lost Hotel to meet with Gurkinn. While X and his friends head to meet with Professor Sycamore, Blue has Charizard and Rhyperior keep them safe on their travels. Once X's group reached their destination, Blue's Pokémon head back to their Trainer.
Later, at Anistar City, Blue and Diantha manage to find Zygarde, which had appeared in the area. Just as they land, Essentia manages to capture it for Team Flare just before escaping.
After learning that Team Flare had gone into hiding at Pokémon Village, Blue, Diantha, and X's group all head out to confront the villains. On the way to the village, the group is attacked by Xerosic, who uses his Malamar to put everyone to sleep. After Blue manages to wake up, he has Y and the others go on ahead while he and X stay behind to fight Xerosic. With Blue's Mega Charizard Y and X's Mega Charizard X, the two proceed to easily defeat Xerosic. With no more obstacles remaining, Blue and X take to the skies and head towards the village, only to be intercepted by Yveltal. Y arrives just in time to defend Blue from Yveltal's attacks with her Xerxer, who tells everyone to go on ahead while it fights Yveltal alone.
While Y and Trevor go to help Tierno and Shauna battle the Team Flare scientists, Blue and X go to the Pokémon Village, only to find Lysandre in battle with Mewtwo. Lysandre reveals to the two that Mewtwo is the protector of the village and began attacking when Team Flare started to capture the Pokémon that lived in the village. Lysandre manipulates Mewtwo into battling Blue and X in an attempt to weaken it enough to be captured. Blue attempts to call out to Mewtwo and get it to recognize him, but his attempts end in failure. During the battle, Mewtwo attacks Blue and X, but redirects the attack towards Lysandre to hit him instead. Mewtwo then proceeds to Mega Evolve into Mega Mewtwo Y. Lysandre counters by summoning Essentia and having her use Zygarde to attack everyone.
The person who Mega Evolved Mewtwo reveals himself to be Blaine, who had been away from the village, which he had been living at for some time after reuniting with Mewtwo. Lysandre has Essentia command Zygarde to use Land's Wrath to heavily damage everyone. The attack heavily damages Blaine, forcing Mewtwo to revert to its normal form. When Zygarde attacks again, Blaine has Mewtwo switch Mega Stones so that it may Mega Evolve into Mega Mewtwo X. Blaine reveals that due to their unique bond, Mewtwo is able to Mega Evolve more than once during a battle. Despite this ability, Zygarde proves to be more powerful than Mewtwo in its Mega-Evolved state and uses Land's Wrath to defeat Blue, Blaine, and Mewtwo at once. With his allies unconscious, X decides to borrow their Key Stones in order to simultaneously Mega Evolve his five capable Pokémon. With their combined power, X's team fights against Zygarde. When Lysandre attempts to stop X with his own Pokémon, Blue and Blaine arrive in time to defeat them. After some time, X manages to defeat Lysandre, freeing Zygarde from his control and putting an end to Team Flare in the process.
Later, Blue and Blaine talk to Professor Sycamore about the final battle against Team Flare. They reveal that after Zygarde disappeared, a small green creature was spotted watching them from the rubble. Sycamore reveals that similar creatures, which he named the Zygarde Cell, have been seen in the Alola region and sends his assistants, Sina and Dexio, to investigate.
This listing is for Blue's Pokémon:
|| Rhydon → Rhyperior ♂
- Main article: Blue's Rhyperior
Rhyperior was captured by Blue as a Rhydon in Rock, Paper...Scizor. In the Indigo League preliminary rounds, Rhydon was used against Chuck, Blue's former teacher. Despite being recently captured, Blue quickly trained Rhydon to a high level with a combination of his abilities and a book written by Giovanni called Secret Earth Arts, which contained detailed information on Ground-type Pokémon that only the former Viridian City Gym Leader knew of. With these, Blue managed to defeat Chuck with Rhydon alone despite the type disadvantage, earning a win for the Kanto Gym Leaders. In the HeartGold & SoulSilver chapter, Rhydon was traded to Silver to replace his missing Ursaring. With the Protector he held, Rhydon evolved into Rhyperior and stayed with him throughout the entire chapter. Sometime before the X & Y chapter, Silver returned Rhyperior to Blue. He is level 82, has a Mild nature, and his Characteristic is "proud of its power."
|| Rock, Paper...Scizor
In box at Viridian Gym
|| Pidgeot ♂
| Pidgeot is one of Blue's original main team members. He was used to send letters to Professor Oak when they cut off communication after Blue's battle with Agatha. He was later replaced by Rhydon. He has a Hardy nature. As of The Last Battle XIV, Pidgeot is at level 76, has a Hardy nature, and his Characteristic is "often lost in thought."
Pidgeot's known moves are Wing Attack and Feather Dance, and his Ability is Keen Eye.
|| A Tale of Ninetales
Because the bonus snippets of Volume 6 shows that Blue has registered 126 Pokémon by the time he battles Agatha, it can be assumed that Blue has caught many more that have yet to be shown or added to his teams.
|| Saur ♂
- Main article: Saur
Saur (Japanese: フッシー Fusshī) was accidentally switched to Blue in A Tale of Ninetales as an Ivysaur. He was returned to Red later. Saur was once again traded to Blue, as a Venusaur this time, in exchange for Blue's Charizard in Trainer Tower in the FireRed LeafGreen chapter. Saur was once again traded back to Red in exchange for Charizard in Vermilion City at the end of the chapter.
|| Bulbasaur, Come Home!
|| Gyara ♂
- Main article: Gyara
Gyara (Japanese: ギャラ Gyara) was traded to Blue in the Gold, Silver & Crystal chapter for Blue's Charizard so that Red could use him to fly to Mt. Silver. He was later returned to Red.
|| Gyarados Splashes In!
Unlike Red, Blue has not made it a priority to win all the Gym Badges, only winning two of them.
Blue has competed in the following Pokémon Leagues:
- Blue and Green are the only main Pokémon Adventures characters whose names were changed for the English translation. This is due to the complexity of Generation I's game releases; in Japan, Pokémon Red was paired with Pokémon Green (leaving Pokémon Blue as a third version), whereas in the rest of the world, Pokémon Red was paired with Pokémon Blue (while there was no Pokémon Green). This name change is present in both the VIZ Media and Chuang Yi translations. His game counterpart is also named Blue in the English translation of the games.
- A panel in the original VIZ printing of volume 3 forgets to make this change. When the Pokémon League scoreboard is shown, Red's rival is identified as "GREEN" and Green is identified as "BLUE". This oversight was still present in the compilation volume The Best of Pokémon Adventures: Red, but was corrected for the 2009 second edition.
- Amongst the occidental languages, only the Italian version kept his Japanese name.
- Although Silver is the Pokédex holder whose special skill is Pokémon trading, Blue tops out the roster amongst the holders with four Pokémon that have evolved via trade. They are his Scizor, Machamp, Porygon2, and Rhyperior. Additionally, his Porygon2 is capable of evolving another time with trade. Meanwhile, the other Pokémon evolving via trade owned by other protagonists are Silver's Kingdra, Gold's Politoed, and Yellow's Golem.
- Both the Japanese and Chinese print show that Professor Oak is Blue's paternal grandfather.
- Blue is the only Pokédex holder to have a sibling.
- Blue is 5'9" (175 cm) tall and weighs 132 lbs (60 kg).
- Blue is both the tallest and heaviest Pokédex holder.
- Blue is the first Pokédex holder to receive his Pokédex.
||From Pokémon Green
|English, Brazilian Portuguese
||From Pokémon Blue
||From Pokémon Version Bleue (Pokémon Blue)
||Same as Gary's French name
||From Pokémon Blaue Edition (Pokémon Blue)
||Same as Gary's German name
||From Pokémon Versione Blu (Pokémon Blue)
||Same as the Japanese name
||From Pokémon Edición Azul (Pokémon Blue)
||Transliteration of his Japanese name
||小茂 Xiǎo Mào
||Same as Gary's Chinese name
||小茂 Síu Mauh
||Transliteration of his Japanese name
||Transliteration of his Japanese name