List of glitches (Generation II): Difference between revisions

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This glitch was fixed in the international releases and in all versions of {{game|Crystal}}.
This glitch was fixed in the international releases and in all versions of {{game|Crystal}}.


{{youtubevid|e4D6wJGGqZA|ChickasaurusGL|Bug}}
{{YouTubeVid|e4D6wJGGqZA|ChickasaurusGL|Bug}}
 
===Cerulean Gym fishing oversight===
This bug was carried over from {{game2|Red|Green|Blue}}. In [[Cerulean Gym]], the [[water tile]]s have [[wild Pokémon]] data programmed in, which allows players to [[Fishing|fish]] {{OBP|Pokémon|species}}. It was already corrected in {{game|Yellow}} and it was fixed again in {{game|Crystal}}.


===Coin Case glitches===
===Coin Case glitches===
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These glitches do not work in the Japanese versions and other localizations or in {{game|Crystal}}.
These glitches do not work in the Japanese versions and other localizations or in {{game|Crystal}}.
When the game is played on the [[Game Boy]] or [[Super Game Boy]] instead of the [[Game Boy Color]], the effects caused by the oversight are more limited.


===Present damage miscalculation===
===Present damage miscalculation===
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===Trainer House corruption===
===Trainer House corruption===
{{main|Trainer House glitch}}
{{main|Trainer House glitches}}
This [[glitch]] affects the {{pkmn|Trainer}} in the [[Trainer House]] and is caused by corrupted {{wp|Random access memory|RAM}} for the [[Saving|save file]] in {{game|Gold and Silver|s}}.
This [[glitch]] affects the {{pkmn|Trainer}} in the [[Trainer House]] and is caused by corrupted {{wp|Random access memory|RAM}} for the [[Save|save file]] in {{game|Gold and Silver|s}}.


==Crystal==
==Crystal==
'''NOTE:''' The following [[glitch]]es affect all versions of English {{game|Crystal}} (1.0 and 1.1) unless noted otherwise.
'''NOTE:''' The following [[glitch]]es affect all versions of English {{game|Crystal}} (1.0 and 1.1) unless noted otherwise.


===Legendary beast Pokédex cry distortion===
===Pokémon Communication Center script bugs===
{{GlitchResearch|Does it also occur in Gold and Silver?}}
In the Japanese version of {{game|Crystal}}, address $A800 in SRAM triggers a script in the [[Pokémon Communication Center]] that may be arbitrarily set to values other than 0x00 when the game does not currently have a [[Save|save file]]; otherwise, its value is correctly set to 0x00. This causes all sort of bugs like crashes, freezes, and other random behavior.
When the {{player}} checks {{p|Entei}}'s [[Pokédex]] entry, plays its [[cry]], and then immediately switches to either {{p|Suicune}}'s or {{p|Raikou}}'s entries, their cry will be distorted.
 
{{youtubevid|50Cgj1n5g1A|LunarRay|glitch}}


===Overworld player sprite miscoloration===
While the purpose of this script is not known, it appears to be related to the [[Pokémon Mobile System GB]]. In the localizations, although the related code is unused, this issue was fixed by adding a check that looks up the value of address $A800 and automatically resets it to 0x00.<ref>[https://github.com/kanzure/pokecrystal/blob/master/misc/mobile_45.asm#L23968 pokecrystal/mobile_45.asm at master · kanzure/pokecrystal · GitHub]</ref>
This [[glitch]] affects the color of the {{player}}'s overworld sprite, switching it between {{ga|Ethan}}'s red and {{ga|Kris}}' blue palettes. It is caused by creating a [[Saving|save file]] as either Ethan or Kris, then overwriting it with another save file using the other player character but turning the game off while the new data is being saved. The effect disappears after saving and rebooting the game (note that the old save file will be overwritten).


{{youtubevid|fcB1LRVhX7E|zachtheglitchbuster|glitch}}
{{YouTubeVid|nqEaRpDEeTw|ChickasaurusGL|Crystal}}


==In all core series games==
==In all core series games==
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When a Pokemon uses {{m|Belly Drum}}, its {{stat|HP}} is deducted by 50% and its {{stat|Attack}} stat raised by up to 12 stages, ensuring that even the {{stat|Attack}} stat of a Pokemon with an {{stat|Attack}} stage of -6 can be maximized. This is accomplished through executing the command used by {{m|Swords Dance}} by a maximum of 6 times; however, the command is erroneously called once before verifying that HP of the user can be deducted by 50%. This means that if the user doesn't have enough HP to use the move, the Attack stat will be incorrectly boosted by 2 stages. The game will state that the attack has failed.
When a Pokemon uses {{m|Belly Drum}}, its {{stat|HP}} is deducted by 50% and its {{stat|Attack}} stat raised by up to 12 stages, ensuring that even the {{stat|Attack}} stat of a Pokemon with an {{stat|Attack}} stage of -6 can be maximized. This is accomplished through executing the command used by {{m|Swords Dance}} by a maximum of 6 times; however, the command is erroneously called once before verifying that HP of the user can be deducted by 50%. This means that if the user doesn't have enough HP to use the move, the Attack stat will be incorrectly boosted by 2 stages. The game will state that the attack has failed.


{{youtubevid|zuCLMikWo4Y|LunarRay|glitch}}
{{YouTubeVid|zuCLMikWo4Y|Dukstless|Normal}}


===Catch rate errors===
===Catch rate errors===
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The [[status conditions]] of paralysis, burn, and poison, increase the catch rate by 0 as opposed to by 5 as it was intended.
The [[status conditions]] of paralysis, burn, and poison, increase the catch rate by 0 as opposed to by 5 as it was intended.


The {{DL|Poké Ball|Love Ball}} only gains a [[catch rate]] of 8&times; on {{OBP|Pokémon|species}} of the same [[gender]] and [[species]] as the {{player}}'s Pokémon, rather than on Pokémon of the opposite gender.
The {{DL|Poké Ball|Love Ball}} only gains a [[catch rate]] of 8&times; on {{OBP|Pokémon|species}} of the same [[gender]] and species as the {{player}}'s Pokémon, rather than on Pokémon of the opposite gender.


The {{DL|Poké Ball|Moon Ball}} was intended to multiply the [[catch rate]] by 4 on Pokemon that evolve with {{DL|Evolutionary stone|Moon Stone}}, but was erroneously programmed to apply this effect on [[Pokémon]] that evolve with {{DL|Status condition healing item|Burn Heal}} instead. Subsequently, {{DL|Poké Ball|Moon Ball}} does not have any additional effect and always acts like a [[Poké Ball]].
The {{DL|Poké Ball|Moon Ball}} was intended to multiply the [[catch rate]] by 4 on Pokemon that evolve with {{DL|Evolutionary stone|Moon Stone}}, but was erroneously programmed to apply this effect on [[Pokémon]] that evolve with {{DL|Status condition healing item|Burn Heal}} instead. Subsequently, {{DL|Poké Ball|Moon Ball}} does not have any additional effect and always acts like a [[Poké Ball]].
Line 78: Line 79:


===Dragon Fang glitch===
===Dragon Fang glitch===
Due to a bug, the [[Dragon Scale]] boosts the power of {{type|Dragon}} moves rather than the [[Dragon Fang]].


Due to a bug, the [[Dragon Scale]] boosts the power of Dragon-type moves rather than the [[Dragon Fang]]. This glitch was first fixed in [[Pokémon Stadium 2]], and was fixed in the core series games in [[Generation III]].
This glitch was fixed in {{g|Stadium 2}}.


===Exp. Share formula error===
===Exp. Share formula error===
A {{OBP|Pokémon|species}} with the same [[original Trainer]] as the {{player}} that is sent into {{pkmn|battle}} with an {{DL|Experience-affecting item|Exp. Share}} [[Held item|held]] will gain 50% of the [[experience]] twice, which, due to rounding, may not equal 100%.
A {{OBP|Pokémon|species}} with the same [[original Trainer]] as the {{player}} that is sent into {{pkmn|battle}} with an {{DL|Experience-affecting item|Exp. Share}} [[Held item|held]] will gain 50% of the [[experience]] twice, which, due to rounding, may not equal 100%.
===Experience amount oversight===
A {{OBP|Pokémon|species}} that gains an amount of experience consisting of five digits will not have the number displayed correctly. Furthermore, such scenario is only possible in the [[Trainer House]]. The lowest [[level]] required for achieving such feat is 82 for Pokémon with an experience yield of 255, and the lowest experience yield with which this is feasible with is 208. Performing the [[glitch]] also requires an [[outsider Pokémon]] with a {{DL|Experience-affecting item|Lucky Egg}}.
{{YouTubeVid|o54VjpAEoO8|Dukstless|Glitch}}


===Experience underflow===
===Experience underflow===
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In [[Generation I]] and {{gen|II}}, [[level]] 1 {{OBP|Pokémon|species}} using the "medium-slow" growth algorithm will jump from level 1 to level 100 after gaining a low amount of experience points (less than 54 if the total experience is 0).
In [[Generation I]] and {{gen|II}}, [[level]] 1 {{OBP|Pokémon|species}} using the "medium-slow" growth algorithm will jump from level 1 to level 100 after gaining a low amount of experience points (less than 54 if the total experience is 0).


{{youtubevid|SXH8u0plHrE|TTEchidna|glitch}}
{{YouTubeVid|SXH8u0plHrE|TTEchidna|Glitch}}
 
===Interregional Teleport quirk===
If the player travels to either [[Kanto]] or [[Johto]] in the [[S.S. Aqua]] and then {{m|teleport}}s, he or she will be taken to either the {{ci|Vermilion}} or {{ci|Olivine}} Pokémon Center as opposed to the last [[Pokémon Center]] they used in either [[region]]. This does not occur with the [[Magnet Train]]. If the player loses a {{pkmn|battle}} during their trip, they will be sent to their cabin instead.
 
In {{game|HeartGold and SoulSilver|s}}, teleporting after travelling in either Magnet Train or S.S. Aqua behaves properly by returning the player to the last Pokémon Center used. This also applies to lost battles during the trip.


===Five-digit experience amount oversight===
{{YouTubeVid|Va3pzlujwE4|channel/SM|Johto|Kanto}}
A {{OBP|Pokémon|species}} that gains an amount of experience consisting of five digits will not have the number displayed correctly. Furthermore, such scenario is only possible in the [[Trainer House]]. The lowest [[level]] required for achieving such feat is 82 for Pokémon with an experience yield of 255, and the lowest experience yield with which this is feasible with is 208. Performing the [[glitch]] also requires an [[outsider Pokémon]] with a {{DL|Experience-affecting item|Lucky Egg}}.


{{youtubevid|o54VjpAEoO8|LunarRay|glitch}}
===Legendary beast cry distortion===
When the {{player}} checks {{p|Entei}}'s [[Pokédex]] entry, plays its [[cry]], and then immediately switches to either {{p|Suicune}}'s or {{p|Raikou}}'s entries, their cry will be distorted.


===Leveling past 100===
===Leveling past 100===
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===Park Ball graphics corruption===
===Park Ball graphics corruption===
If the {{DL|Poké Ball|Sport Ball|Park Ball}} is used from the Ball pocket of the {{player}}'s [[Bag]] on a [[wild Pokémon]], the game will not reload the graphics on the battle screen, causing a temporary glitch in which part of both the Bag and {{pkmn|battle}} screens mix up until the Pokémon catching animation is over, at which point the game will show the battle screen being reloaded.
If the {{DL|Poké Ball|Sport Ball|Park Ball}} is used from the Ball pocket of the {{player}}'s [[Bag]] on a [[wild Pokémon]], the game will not reload the graphics on the battle screen, causing a temporary glitch in which part of both the Bag and {{pkmn|battle}} screens mix up until the Pokémon catching animation is over, at which point the game will show the battle screen being reloaded.
{{youtubevid|v1ErZdLCIyU|SatoMew|Bug}}


===Pokémon Storage System cloning===
===Pokémon Storage System cloning===
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If a {{m|Transform|transformed}} Pokémon defeats a Trainer's Pokémon and the player switches it out to a [[Shiny Pokémon]] when prompted to, the transformed Pokémon will have a Shiny pallette while being switched. This does not happen if player switches Pokémon normally.
If a {{m|Transform|transformed}} Pokémon defeats a Trainer's Pokémon and the player switches it out to a [[Shiny Pokémon]] when prompted to, the transformed Pokémon will have a Shiny pallette while being switched. This does not happen if player switches Pokémon normally.


{{youtubevid|VbPRiHBNh-M|BrightcynderPhase2|glitch}}
{{YouTubeVid|VbPRiHBNh-M|BrightcynderPhase2|Normal}}


===Sketch glitches===
===Sketch glitches===
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===Trade cloning===
===Trade cloning===
{{main|Cloning glitches#Trading method}}
{{main|Cloning glitches#Trading method}}
===Trainer Counter/Mirror Coat damage oversight===
In {{pkmn|Trainer}} {{pkmn|battle}}s only, if the player uses a healing item or a [[Poké Ball]] during the same turn as the opponent's {{m|Counter}} or {{m|Mirror Coat}}, their [[damage]] will be of at least 4 {{stat|HP}}, twice the minimum standard damage for neutral moves (2 HP).
{{YouTubeVid|uRYyzKRatFk|channel/UCQcizw_rc-q55lmwU3w6-wA|name=Crystal_|Psychic|Fighting}}


==Glitches involving communication with the Generation I games==
==Glitches involving communication with the Generation I games==
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The Shiny Ditto glitch requires a game from both [[Generation I]] and {{gen|II}} but it only has an effect on a Generation II game. In Generation I, if a {{OBP|Pokémon|species}} uses the [[move]] {{m|Transform}} while already transformed, it will retain the {{IV|DV}}s of the Pokémon it transformed into after being {{pkmn2|caught}}. Due to {{Shiny|Shininess}} being determined by DVs in Generation II, this allows the {{player}} to make a {{pkmn2|wild}} Ditto Shiny by having it use Transform while already transformed; accomplishing this is possible by either having a Shiny Pokémon that knows Transform ({{p|Mew}}, certain [[glitch Pokémon]], or another Ditto) or by teaching a Shiny Pokémon the move {{m|Mimic}}, then having the wild Ditto use Mimic on the move Transform. The end result is that the Ditto will be Shiny in the Generation II game.
The Shiny Ditto glitch requires a game from both [[Generation I]] and {{gen|II}} but it only has an effect on a Generation II game. In Generation I, if a {{OBP|Pokémon|species}} uses the [[move]] {{m|Transform}} while already transformed, it will retain the {{IV|DV}}s of the Pokémon it transformed into after being {{pkmn2|caught}}. Due to {{Shiny|Shininess}} being determined by DVs in Generation II, this allows the {{player}} to make a {{pkmn2|wild}} Ditto Shiny by having it use Transform while already transformed; accomplishing this is possible by either having a Shiny Pokémon that knows Transform ({{p|Mew}}, certain [[glitch Pokémon]], or another Ditto) or by teaching a Shiny Pokémon the move {{m|Mimic}}, then having the wild Ditto use Mimic on the move Transform. The end result is that the Ditto will be Shiny in the Generation II game.


{{youtubevid|8Lb5pq0y6h8|v0id19|glitch}}
{{YouTubeVid|8Lb5pq0y6h8|v0id19|Normal}}


===Trade evolution learnset oversight===
===Trade evolution learnset oversight===
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This is a glitch that can be performed in [[Pokémon Stadium 2]] with any [[Stadium Cup]]. It does not work in the original {{eng|Pokémon Stadium}}. If there is a previously suspended game and the player is playing the [[Stadium Cup]], suspending the game after a loss causes a warning message to pop up, telling the player that there is already a suspended game. If "Continue without Suspending" is selected, a rematch with the opponent who just defeated the player will be triggered, but no continue will be used.
This is a glitch that can be performed in [[Pokémon Stadium 2]] with any [[Stadium Cup]]. It does not work in the original {{eng|Pokémon Stadium}}. If there is a previously suspended game and the player is playing the [[Stadium Cup]], suspending the game after a loss causes a warning message to pop up, telling the player that there is already a suspended game. If "Continue without Suspending" is selected, a rematch with the opponent who just defeated the player will be triggered, but no continue will be used.


===Pokémon Blue Pokedex oversight===
===Pokédex data oversight===
Due to a localization oversight, in the English version of Pokémon Stadium 2. Inserting a Pokémon Blue Game Pak and looking up wild Pokémon locations in the Pokedex will show the wild Pokémon locations from Japanese Blue.
Due to a localization oversight, using the [[Transfer Pak]] with the English versions of {{g|Stadium 2}} and {{game|Red and Blue|s|Pokémon Blue}} and looking up the locations of [[wild Pokémon]] in the [[Pokédex]] will instead load the corresponding data for the Japanese version.
{{-}}
 
==References==
{{reflist}}
 
{{Glitches}}<br>
{{Glitches}}<br>
{{Project GlitchDex notice}}
{{Project GlitchDex notice}}

Revision as of 00:45, 19 November 2015

This is a list of glitches that occur in the Generation II Pokémon games.

Gold and Silver

NOTE: The following glitches affect all versions of Japanese Pokémon Gold and Silver (1.0 and 1.1) unless noted otherwise.

Bug-Catching Contest data copy glitch

Main article: Bug-Catching Contest data copy glitch

In the Japanese versions of Pokémon Gold and Silver, if the player uses Fly or Teleport to leave the National Park during a Bug-Catching Contest, the game creates unstable Pokémon data.

This glitch was fixed in the international releases and in all versions of Pokémon Crystal.

By ChickasaurusGL
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Cerulean Gym fishing oversight

This bug was carried over from Pokémon Red, Green, and Blue. In Cerulean Gym, the water tiles have wild Pokémon data programmed in, which allows players to fish Pokémon. It was already corrected in Pokémon Yellow and it was fixed again in Pokémon Crystal.

Coin Case glitches

Main article: Coin Case glitches

The Coin Case glitches are a set of glitches which occur exclusively in the English versions of Pokémon Gold and Silver. They allow the player to run arbitrary code by exploiting an oversight in the process used by the game to print the text box data for the Coin Case.

These glitches do not work in the Japanese versions and other localizations or in Pokémon Crystal.

When the game is played on the Game Boy or Super Game Boy instead of the Game Boy Color, the effects caused by the oversight are more limited.

Present damage miscalculation

Main article: Present (move)#Generation II

In Pokémon Gold and Silver, the move Present has a damage formula of its own due to a glitch. This causes the level, Attack, and Defense variables of the regular damage formula to be replaced. Thus, the move deals unusually large or small amounts of damage, depending on the Pokémon.

This glitch was fixed in Pokémon Stadium 2 and in Pokémon Crystal but it still occurs in the latter during Link battles to preserve backwards compatibility.

Thick Club effect error

If a Marowak with an Attack stat equal or higher than 256 uses Swords Dance while holding a Thick Club, its Attack will be reduced by 1024 (minimum 1) during damage calculation only. This happens as a consequence of an oversight that causes the temporary Attack boost from Thick Club to ignore the stat cap of 999 unlike other stat modifiers. During damage calculation, both the attacker's (Special) Attack stat and the defender's (Special) Defense stat are modded by 256, and, prior to that, if either is higher than 255, both are temporarily divided by 4. Thus, stats that are equal or higher than 1024 (256×4) will be treated wrongly.

This glitch was fixed in Pokémon Stadium 2 and in Pokémon Crystal but it still occurs in the latter during Link battles to preserve backwards compatibility.

This behavior also applies to Pikachu holding Light Ball and to Ditto holding Metal Powder. However, these Pokémon need to receive boosts from a Pokémon that knows Baton Pass in order to be able to reach a stat of at least 1024.

Trainer House corruption

Main article: Trainer House glitches

This glitch affects the Trainer in the Trainer House and is caused by corrupted RAM for the save file in Pokémon Gold and Silver.

Crystal

NOTE: The following glitches affect all versions of English Pokémon Crystal (1.0 and 1.1) unless noted otherwise.

Pokémon Communication Center script bugs

In the Japanese version of Pokémon Crystal, address $A800 in SRAM triggers a script in the Pokémon Communication Center that may be arbitrarily set to values other than 0x00 when the game does not currently have a save file; otherwise, its value is correctly set to 0x00. This causes all sort of bugs like crashes, freezes, and other random behavior.

While the purpose of this script is not known, it appears to be related to the Pokémon Mobile System GB. In the localizations, although the related code is unused, this issue was fixed by adding a check that looks up the value of address $A800 and automatically resets it to 0x00.[1]

By ChickasaurusGL
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


In all core series games

NOTE: The following glitches affect all versions of Japanese Pokémon Gold and Silver (1.0 and 1.1) and of English Pokémon Crystal (1.0 and 1.1) unless noted otherwise.

Belly Drum effect error

When a Pokemon uses Belly Drum, its HP is deducted by 50% and its Attack stat raised by up to 12 stages, ensuring that even the Attack stat of a Pokemon with an Attack stage of -6 can be maximized. This is accomplished through executing the command used by Swords Dance by a maximum of 6 times; however, the command is erroneously called once before verifying that HP of the user can be deducted by 50%. This means that if the user doesn't have enough HP to use the move, the Attack stat will be incorrectly boosted by 2 stages. The game will state that the attack has failed.

By Dukstless
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Catch rate errors

There are four minor bugs in the catch rate formula, all of them as a consequence of programming oversights.

The status conditions of paralysis, burn, and poison, increase the catch rate by 0 as opposed to by 5 as it was intended.

The Love Ball only gains a catch rate of 8× on Pokémon of the same gender and species as the player's Pokémon, rather than on Pokémon of the opposite gender.

The Moon Ball was intended to multiply the catch rate by 4 on Pokemon that evolve with Moon Stone, but was erroneously programmed to apply this effect on Pokémon that evolve with Burn Heal instead. Subsequently, Moon Ball does not have any additional effect and always acts like a Poké Ball.

The Fast Ball only quadruples the catch rate against the first three of all fleeing Pokémon: Magnemite, Grimer, and Tangela.

Celebi Egg glitch

Main article: Celebi Egg glitch

Ditto assumption

In Generation I and II, any Pokémon that uses Transform is regarded as a Ditto in its new form; this means that if the player catches a Mew or a glitch Pokémon which has used the move Transform or a Pokémon which has used Transform via Mirror Move, instead they will obtain a Ditto.

Mew turning into Ditto is not an issue because wild Mew cannot be legitimately encountered. With the overhaul of the mechanics in Generation III, wild Mew are able to legitimately encountered. Nonetheless, the glitch is also no longer a concern because it too was fixed in Generation III.

Dragon Fang glitch

Due to a bug, the Dragon Scale boosts the power of Dragon-type moves rather than the Dragon Fang.

This glitch was fixed in Pokémon Stadium 2.

Exp. Share formula error

A Pokémon with the same original Trainer as the player that is sent into battle with an Exp. Share held will gain 50% of the experience twice, which, due to rounding, may not equal 100%.

Experience amount oversight

A Pokémon that gains an amount of experience consisting of five digits will not have the number displayed correctly. Furthermore, such scenario is only possible in the Trainer House. The lowest level required for achieving such feat is 82 for Pokémon with an experience yield of 255, and the lowest experience yield with which this is feasible with is 208. Performing the glitch also requires an outsider Pokémon with a Lucky Egg.

By Dukstless
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Experience underflow

Main article: Experience#Experience underflow glitch

In Generation I and II, level 1 Pokémon using the "medium-slow" growth algorithm will jump from level 1 to level 100 after gaining a low amount of experience points (less than 54 if the total experience is 0).

By TTEchidna
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Interregional Teleport quirk

If the player travels to either Kanto or Johto in the S.S. Aqua and then teleports, he or she will be taken to either the Vermilion or Olivine Pokémon Center as opposed to the last Pokémon Center they used in either region. This does not occur with the Magnet Train. If the player loses a battle during their trip, they will be sent to their cabin instead.

In Pokémon HeartGold and SoulSilver, teleporting after travelling in either Magnet Train or S.S. Aqua behaves properly by returning the player to the last Pokémon Center used. This also applies to lost battles during the trip.

By channel/SM
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Legendary beast cry distortion

When the player checks Entei's Pokédex entry, plays its cry, and then immediately switches to either Suicune's or Raikou's entries, their cry will be distorted.

Leveling past 100

In Generation I and II, if a Pokémon is obtained at a level above 100 (101–254), it can be leveled up with Rare Candies up to level 255. If a Rare Candy is fed to a level 255 Pokémon, its level will reset to 0. If a Pokémon above level 100 levels up due to experience, its level will be reset to 100.

Park Ball graphics corruption

If the Park Ball is used from the Ball pocket of the player's Bag on a wild Pokémon, the game will not reload the graphics on the battle screen, causing a temporary glitch in which part of both the Bag and battle screens mix up until the Pokémon catching animation is over, at which point the game will show the battle screen being reloaded.

Pokémon Storage System cloning

Main article: Cloning glitches#Storage system method

Shiny switch glitch

If a transformed Pokémon defeats a Trainer's Pokémon and the player switches it out to a Shiny Pokémon when prompted to, the transformed Pokémon will have a Shiny pallette while being switched. This does not happen if player switches Pokémon normally.

By BrightcynderPhase2
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Sketch glitches

Main article: Sketch glitch

Trade cloning

Main article: Cloning glitches#Trading method

Trainer Counter/Mirror Coat damage oversight

In Trainer battles only, if the player uses a healing item or a Poké Ball during the same turn as the opponent's Counter or Mirror Coat, their damage will be of at least 4 HP, twice the minimum standard damage for neutral moves (2 HP).

By Crystal_
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Glitches involving communication with the Generation I games

Johto guard bypassing

Main article: Johto guard glitch

Shiny Ditto DV manipulation

The Shiny Ditto glitch requires a game from both Generation I and II but it only has an effect on a Generation II game. In Generation I, if a Pokémon uses the move Transform while already transformed, it will retain the DVs of the Pokémon it transformed into after being caught. Due to Shininess being determined by DVs in Generation II, this allows the player to make a wild Ditto Shiny by having it use Transform while already transformed; accomplishing this is possible by either having a Shiny Pokémon that knows Transform (Mew, certain glitch Pokémon, or another Ditto) or by teaching a Shiny Pokémon the move Mimic, then having the wild Ditto use Mimic on the move Transform. The end result is that the Ditto will be Shiny in the Generation II game.

By v0id19
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Trade evolution learnset oversight

Generation I Pokémon that evolve by trading can be taught glitch moves through this glitch. This can be achieved by trading such Pokémon from a Generation I game to a Generation II game at a level where its evolved form will learn a move not present in Generation I. Trading the Pokémon back to the Generation I game will cause the move to become a glitch move.

For example, trading a level 34 Graveler from Pokémon Red to Pokémon Gold will cause the Graveler to evolve into Golem. Since it is at level 34, it will learn Rollout in Gold. If it is then traded back to Red, it will still have the move but the game won't recognize it properly since it is a Generation II move, so it will become TM05.

Stadium 2

Infinite continues glitch

This is a glitch that can be performed in Pokémon Stadium 2 with any Stadium Cup. It does not work in the original Pokémon Stadium. If there is a previously suspended game and the player is playing the Stadium Cup, suspending the game after a loss causes a warning message to pop up, telling the player that there is already a suspended game. If "Continue without Suspending" is selected, a rematch with the opponent who just defeated the player will be triggered, but no continue will be used.

Pokédex data oversight

Due to a localization oversight, using the Transfer Pak with the English versions of Pokémon Stadium 2 and Pokémon Blue and looking up the locations of wild Pokémon in the Pokédex will instead load the corresponding data for the Japanese version.

References


Multiple
generations
Transform glitchesGlitch TrainersCloning glitchesError messagesArbitrary code execution
Generation I GlitchesBattle glitchesOverworld glitches
--0 ERRORBroken hidden itemsCable Club escape glitchDual-type damage misinformation
Experience underflow glitchFight Safari Zone Pokémon trickGlitch CityItem duplication glitchItem underflow
Mew glitchOld man glitchPewter Gym skip glitchPokémon merge glitchRhydon glitchRival twins glitch
Select glitches (dokokashira door glitch, second type glitch) • Super Glitch
Time Capsule exploitWalking through wallsZZAZZ glitch
Generation II GlitchesBattle glitches
Bug-Catching Contest glitchCelebi Egg glitchCoin Case glitchesExperience underflow glitch
Glitch dimensionGlitch EggTeru-samaTime Capsule exploitTrainer House glitchesGS Ball mail glitch
Generation III GlitchesBattle glitches
Berry glitchDive glitchPomeg glitchGlitzer Popping
Generation IV GlitchesBattle glitchesOverworld glitches
Acid rainGTS glitchesPomeg glitchRage glitch
Surf glitchTweakingPal Park Retire glitch
Generation V GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Frozen Zoroark glitchSky Drop glitch
Generation VI GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Lumiose City save glitchSymbiosis Eject Button glitchToxic sure-hit glitch
Generation VII GlitchesBattle glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitch
Generation VIII Glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitchParty item offset glitch
Generation IX Glitches
Glitch effects Game freezeGlitch battleGlitch song
Gen I only: Glitch screenTMTRAINER effectInverted sprites
Gen II only: Glitch dimension
Lists Glitches (GOMystery DungeonTCG GBSpin-off)
Glitch Pokémon (Gen IGen IIGen IIIGen IVGen VGen VIGen VIIGen VIII)
Glitch moves (Gen I) • Glitch types (Gen IGen II)


Project GlitchDex logo.png This glitch Pokémon article is part of Project GlitchDex, a Bulbapedia project that aims to write comprehensive articles on glitches in the Pokémon games.