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'''Glitches''' are anomalies in software programs that can cause various problems ranging from pure graphical and audio glitches to complete file corruption or deletion of the [[Saving|save file]].
{{Cleanup}}
 
'''Glitches''', also known as '''bugs''', are unintended behavior in software like the [[Pokémon games]]. They can be triggered from mistakes within the game's code or by exploits that were not anticipated by the programmers, thus causing the game to react unexpectedly. Resulting issues may range from benign (such as graphical and audio distortions or wrong effects of in-game elements) to hazardous (such as corruption or deletion of data).
Glitches can be triggered from problems within a game's code, or by exploits the programmers didn't anticipate, thus causing the game to react unexpectedly.
 
==List of glitches==
*[[List of glitches in Generation I]]
*[[List of glitches in Generation II]]
*[[List of glitches in Generation III]]
*[[List of glitches in Generation IV]]
*[[List of glitches in Generation V]]
*[[List of glitches in Generation VI]]
*[[List of glitches in spin-off games]]


==Glitch Pokémon==
==Glitch Pokémon==
{{main|Glitch Pokémon}}
{{main|Glitch Pokémon}}
 
Glitch Pokémon are the result of any bug that causes a game to read special-purpose data or data outside of its internal Pokémon definition list as a Pokémon definition. For example, [[MissingNo.]]'s base stats are taken from the parties of several {{tc|Biker|Bikers}}.
Glitch Pokémon {{OBP|Pokémon|species}} are Pokémon not intended to be part of the game, but can be accessed through the use of glitches or cheating devices. All glitch Pokémon are either filler data, the game's attempting to read an empty hexadecimal address, or data that exist from beta testing.


==Glitch characteristics==
==Glitch characteristics==
===Glitch moves===
===Glitch moves===
{{main|List of glitch moves}}
{{main|List of glitch moves}}
A glitch [[move]] is a move not intended to be part of the game, but can be accessed through the use of glitches or cheating device. In [[Generation I]], many glitch moves are named after TMs or HMs; TMs numbered {{m|TM01|01}} to {{m|TM55|55}} and HMs numbered {{m|HM01|01}} to {{m|HM05|05}} exist as moves; however, some have {{m|--|no name}} or a {{m|Super Glitch|glitched, unreadable name}}. Some glitch moves are of known glitch types, but others have either no readable type or an unknown type. Usually only glitch Pokémon will learn glitch moves.
A glitch [[move]] is a move not intended to be part of the game, but can be accessed through the use of glitches or cheating device. In [[Generation I]], many glitch moves are named after TMs or HMs; TMs numbered {{m|TM01|01}} to {{m|TM55|55}} and HMs numbered {{m|HM01|01}} to {{m|HM05|05}} exist as moves; however, some have {{m|--|no name}} or {{m|Super Glitch|glitched, unreadable names}}. Some glitch moves are of known glitch types, but others have either no readable type or an unknown type. Usually, only glitch Pokémon will learn glitch moves.
 
One way of teaching a Pokémon in Generation I a glitch move is with a Pokémon that can evolve by trading. This can be achieved by trading a trade evolution Pokémon from a Generation I game to a Generation II, at a level where its evolved form will learn a move not 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 48 {{p|Haunter}} from {{game3|Red and Blue|Pokémon Red|s}} to {{game3|Gold and Silver|Pokémon Gold|s}} will make the Haunter evolve into {{p|Gengar}}. Since it is level 48, it will learn {{m|Mean Look}}. If it is then traded back to Pokémon Red, it will still have the move, but the game won't recognize it properly since it is a Generation II move, so will become {{m|TM12}}.
One way of teaching a Pokémon in Generation I a glitch move is with a Pokémon that can evolve by trading. This can be achieved by trading a trade evolution Pokémon from a Generation I game to a Generation II, at a level where its evolved form will learn a move not 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 48 {{p|Haunter}} from {{game3|Red and Blue|Pokémon Red|s}} to {{game3|Gold and Silver|Pokémon Gold|s}} will make the Haunter evolve into {{p|Gengar}}. Since it is level 48, it will learn {{m|Mean Look}}. If it is then traded back to Pokémon Red, it will still have the move, but the game won't recognize it properly since it is a Generation II move, so will become {{m|TM12}}.


Any Pokémon using Transform, or using Transform via {{m|Mimic}}, can learn {{m|--|--}} with the transform glitch.
In Generation I, any Pokémon using {{m|Transform}} or using Transform via {{m|Mirror Move}} can learn {{m|--|--}} with the Transform glitch. The glitch is performed by sending out a Pokémon with less than 4 moves and using Transform, and then switching the first move with the last. Then Transform will be replaced with --.


===Glitch types===
===Glitch types===
{{main|List of glitch types}}
{{main|List of glitch types}}
There are different glitch types that are found to be the types of several glitch Pokémon and moves. The majority of them are used for very few Pokémon or moves.
There are many different glitch types that happen to be the types of several glitch Pokémon and moves. The majority of them are used for very few Pokémon or moves. A famous glitch type is the unique {{type|Bird}}, which is a leftover type thought to be a beta version of the {{type|Flying}}. All other glitch types are simply other data read as a type name. Glitch types typically do not have any weaknesses, resistances, or immunities.


===Glitch locations===
===Glitch locations===
There are several locations which can only be reached by means of glitches or hacks. One of the most well known of these is the [[Glitch City]]. Other examples of these are areas in the [[Sevii Islands]] that are retrievable via their [[index number]] pointer, however, do not have any other data. [[Sevii Isles 8 and 9]] are the only index number areas which have actual map data. There are also other beta locations such as the [[beta Safari Zone]].
There are several locations which can only be reached by means of glitches or hacks. One of the most well known of these is the [[Glitch City]]. Other examples of these are areas in the [[Sevii Islands]] that are retrievable via their [[index number]] pointer, however, do not have any other data. [[Pokémon FireRed and LeafGreen beta#Sevii Isles|Sevii Isles 8 and 9]] are the only index number areas which have actual map data. There are also other beta locations such as [[Pokémon Gold and Silver beta|the unused Safari Zone]].


===Glitch items===
===Glitch items===
{{Main|List of dummied out items}}
{{Main|List of unobtainable items}}
Placeholder items are often left in the game's code to prevent it from crashing if the data is accessed, such as the [[Teru-sama]] item in [[Generation II]]. Likewise, other generations have placeholder items, with most appearing at the end of the item list, though a few, likely removed during development, appear in the middle.
Placeholder items are often left in the game's code to prevent it from crashing if the data is accessed, such as the [[Teru-sama]] item in [[Generation II]]. Likewise, other generations have placeholder items, with most appearing at the end of the item list, though a few, likely removed during development, appear in the middle.


Often, placeholder items change into real items ([[key items]] or otherwise) in later games of a generation. The [[GS Ball]], [[Clear Bell]], and {{key|II|Egg Ticket}}, which only appear in {{game|Crystal}}, are programmed into the games' [[List of items by index number (Generation II)|internal list]] where Teru-samas existed in {{game|Gold and Silver|s}}, and will, if they are hacked to be held by a Pokémon being traded to the earlier games, transform.
Often, placeholder items change into real items ([[Key Items]] or otherwise) in later games of a generation. The [[GS Ball]], [[Clear Bell]], and {{key|II|Egg Ticket}}, which only appear in {{game|Crystal}}, are programmed into the games' [[List of items by index number (Generation II)|internal list]] where Teru-samas existed in {{game|Gold and Silver|s}}, and will, if they are hacked to be held by a Pokémon being traded to the earlier games, transform.


Thus, glitch items that become real items from a later game only appear in [[Generation II]] and [[Generation IV]], as all items not present in {{game|Ruby and Sapphire|s}} that were reintroduced in {{game|FireRed and LeafGreen|s}} and newly-introduced in {{game|Emerald}} appear at the end of the list. They would cause a copy of Ruby or Sapphire to crash when it is selected, as they are beyond its item list. Generation II is the only generation in which all new items replace glitch items in the middle of the item list, thus not causing a permanent problem if transferred, as the {{DL|Legendary artifacts|Griseous Orb}} is the only item in Generation IV that is programmed at the same index number that a glitch item is present at in {{game|Diamond and Pearl|s}}, while the other items introduced in {{game|Platinum}} and reintroduced in {{game|HeartGold and SoulSilver|s}} are after the end of the Diamond and Pearl list, and thus crash the game if the glitch item in their place is selected in a game they do not exist in.
Thus, glitch items that become real items from a later game only appear in [[Generation II]] and [[Generation IV]], as all items not present in {{game|Ruby and Sapphire|s}} that were reintroduced in {{game|FireRed and LeafGreen|s}} and newly introduced in {{game|Emerald}} appear at the end of the list. They would cause a copy of Ruby or Sapphire to crash when it is selected, as they are beyond its item list. Generation II is the only generation in which all new items replace glitch items in the middle of the item list, thus not causing a permanent problem if transferred, as the {{DL|Legendary artifacts|Griseous Orb}} is the only item in Generation IV that is programmed at the same index number that a glitch item is present at in {{game|Diamond and Pearl|s}}, while the other items introduced in {{game|Platinum}} and reintroduced in {{game|HeartGold and SoulSilver|s}} are after the end of the Diamond and Pearl list, and thus crash the game if the glitch item in their place is selected in a game they do not exist in.


===Glitch Trainers===
===Glitch Trainers===
{{main|Glitch Trainer}}
{{main|Glitch Trainer}}
[[Glitch Trainer]]s have been known to occur in [[Generation I]] and [[Generation II]]. They are usually found if the player's name contains special characters and performs the [[old man glitch]]. There are also several special stat numbers used in the [[Mew glitch]] which cause glitch Trainers to appear, such as when the [[ZZAZZ glitch]] is triggered. Glitch Trainers may use [[glitch Pokémon]] in battle.
[[Glitch Trainer]]s have been known to occur in [[Generation I]] and [[Generation II]]. They, like glitch Pokémon, result from the game reading trainer or party information from an area in the game code that does not contain that information.
 
==Related articles==
*[[List of glitches in Generation I]]
*[[List of glitches in Generation II]]
*[[List of glitches in Generation III]]
*[[List of glitches in Generation IV]]
*[[List of glitches in Generation V]]
*[[List of glitches in Generation VI]]


{{Glitches}}
{{Glitches}}
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[[Category:Game mechanics]]
[[Category:Game mechanics]]
[[Category:Glitches|*]]
[[Category:Glitches|*]]
[[it:Glitch]]
[[pt:Glitch]]


[[de:Bug]]
[[de:Bug]]
[[fr:Bug]]
[[fr:Bug]]
[[ja:裏技・うわさの一覧]]
[[it:Glitch]]
[[ja:裏技・バグ一覧]]
[[zh:遊戲漏洞]]
[[zh:遊戲漏洞]]

Revision as of 20:00, 19 June 2016

0572Minccino.png This article does not yet meet the quality standards of Bulbapedia. Please feel free to edit this article to make it conform to Bulbapedia norms and conventions.

Glitches, also known as bugs, are unintended behavior in software like the Pokémon games. They can be triggered from mistakes within the game's code or by exploits that were not anticipated by the programmers, thus causing the game to react unexpectedly. Resulting issues may range from benign (such as graphical and audio distortions or wrong effects of in-game elements) to hazardous (such as corruption or deletion of data).

Glitch Pokémon

Main article: Glitch Pokémon

Glitch Pokémon are the result of any bug that causes a game to read special-purpose data or data outside of its internal Pokémon definition list as a Pokémon definition. For example, MissingNo.'s base stats are taken from the parties of several Bikers.

Glitch characteristics

Glitch moves

Main article: List of glitch moves

A glitch move is a move not intended to be part of the game, but can be accessed through the use of glitches or cheating device. In Generation I, many glitch moves are named after TMs or HMs; TMs numbered 01 to 55 and HMs numbered 01 to 05 exist as moves; however, some have no name or glitched, unreadable names. Some glitch moves are of known glitch types, but others have either no readable type or an unknown type. Usually, only glitch Pokémon will learn glitch moves.

One way of teaching a Pokémon in Generation I a glitch move is with a Pokémon that can evolve by trading. This can be achieved by trading a trade evolution Pokémon from a Generation I game to a Generation II, at a level where its evolved form will learn a move not 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 48 Haunter from Pokémon Red to Pokémon Gold will make the Haunter evolve into Gengar. Since it is level 48, it will learn Mean Look. If it is then traded back to Pokémon Red, it will still have the move, but the game won't recognize it properly since it is a Generation II move, so will become TM12.

In Generation I, any Pokémon using Transform or using Transform via Mirror Move can learn -- with the Transform glitch. The glitch is performed by sending out a Pokémon with less than 4 moves and using Transform, and then switching the first move with the last. Then Transform will be replaced with --.

Glitch types

Main article: List of glitch types

There are many different glitch types that happen to be the types of several glitch Pokémon and moves. The majority of them are used for very few Pokémon or moves. A famous glitch type is the unique Bird-type, which is a leftover type thought to be a beta version of the Flying-type. All other glitch types are simply other data read as a type name. Glitch types typically do not have any weaknesses, resistances, or immunities.

Glitch locations

There are several locations which can only be reached by means of glitches or hacks. One of the most well known of these is the Glitch City. Other examples of these are areas in the Sevii Islands that are retrievable via their index number pointer, however, do not have any other data. Sevii Isles 8 and 9 are the only index number areas which have actual map data. There are also other beta locations such as the unused Safari Zone.

Glitch items

Main article: List of unobtainable items

Placeholder items are often left in the game's code to prevent it from crashing if the data is accessed, such as the Teru-sama item in Generation II. Likewise, other generations have placeholder items, with most appearing at the end of the item list, though a few, likely removed during development, appear in the middle.

Often, placeholder items change into real items (Key Items or otherwise) in later games of a generation. The GS Ball, Clear Bell, and Egg Ticket, which only appear in Pokémon Crystal, are programmed into the games' internal list where Teru-samas existed in Pokémon Gold and Silver, and will, if they are hacked to be held by a Pokémon being traded to the earlier games, transform.

Thus, glitch items that become real items from a later game only appear in Generation II and Generation IV, as all items not present in Pokémon Ruby and Sapphire that were reintroduced in Pokémon FireRed and LeafGreen and newly introduced in Pokémon Emerald appear at the end of the list. They would cause a copy of Ruby or Sapphire to crash when it is selected, as they are beyond its item list. Generation II is the only generation in which all new items replace glitch items in the middle of the item list, thus not causing a permanent problem if transferred, as the Griseous Orb is the only item in Generation IV that is programmed at the same index number that a glitch item is present at in Pokémon Diamond and Pearl, while the other items introduced in Pokémon Platinum and reintroduced in Pokémon HeartGold and SoulSilver are after the end of the Diamond and Pearl list, and thus crash the game if the glitch item in their place is selected in a game they do not exist in.

Glitch Trainers

Main article: Glitch Trainer

Glitch Trainers have been known to occur in Generation I and Generation II. They, like glitch Pokémon, result from the game reading trainer or party information from an area in the game code that does not contain that information.

Related articles


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