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{{Summary page}}{{Bulbapedia2|Glitch dimension}}
'''Glitch Dimension''' is a side effect of a Game Boy Color enhanced game (such as {{GSC}} and {{Y}}) having program execution restart from the initial entrypoint (as could happen as a direct consequence of glitches, or with [[arbitrary code execution]] or [[Game Boy cartridge tilting|cartridge tilting]]) while being played in Game Boy Color mode, that manifests as incorrect colors until the system is reset normally. In particular, a Game Boy Color exclusive title will not be playable in this state, displaying a "[[This Game Pak is designed only for use on the Game Boy Color.]]" screen instead.
 
It is caused by the game's inability to detect the system as GBC compatible, due to this detection relying on the now broken assumption that the console's bootrom (the piece of software responsible for, among other functions, displaying the Game Boy logo) had just finished running.
The term '''Glitch Dimension''' is a misnomer given to the consequence of a GameBoy game attempting to use an in built [[error trap]] to reset the game, but without changing the newer colour palette back to the default. It most commonly occurs in ''Pokémon Gold'', ''Silver'', and ''Crystal'' but on rarer occassions it can happen in the [[bp:Generation I|Generation I]] Pokémon games and unrelated games such as [[wikipedia:Tetris|Tetris]]. It is not a new 'region' in the sense that [[Glitch City]] is, but it is commonly mistaken for the Johto equivalent of Glitch City. There are many ways to make the game reset itself into a Glitch Dimension and there are a few known ways to make the game fail to restart itself correctly without the use of a [[game-altering device]]. It is notable however, that if the player attempts one of these methods in Pokémon Crystal (or any game which is incompatible for use on the [[wikipedia:Super GameBoy|Super GameBoy]]), after the game restarts itself, the colours will change but the game becomes unplayable until it is restarted manually, as it will display the message "[[This Game Pak is designed only for use on the Game Boy Color.]]"
 
It is so named due to being one of the earliest discovered applications of the [[Coin Case glitch]] and hence a Generation II parallel to Generation I's [[Glitch City]], despite the fact it does not place the player within in a glitchy collection of tiles in the way that Glitch City does, nor do they share any technical details.
 
Despite the name's origin this effect is not unique to the Pokémon games, but can potentially happen in any GBC game; in fact, the term has seen moderate acceptance outside the Pokémon glitch community. Conversely, [https://tcrf.net/The_Cutting_Room_Floor:Common_Things#Game_Boy_Color.2FNintendo_DSi it is not an issue on Nintendo DSi software due to a completely different implementation].
 
==Explanation==
When the game is run on a Game Boy Color or Game Boy Advance/SP, the console's bootrom passes control to the cartridge with register 'a' initialized as 0x11, and this value causes the game to use Game Boy Color mode. Other consoles' bootroms initialize the register 'a' differently: The original Game Boy and Super Game Boy initialize it to 0x01, and the Game Boy Pocket and Super Game Boy 2 initialize it to 0xFF.
 
GBC games would usually check for this value at the very beginning of game startup, near the entry point. For example, Pokémon Gold sets memory address $FFE8 to 0x01 if the game is run on the Game Boy Color or Game Boy Advance/SP, or to 0x00 if the game is run on another system. (A soft reset will skip this initialization.)
 
Glitch Dimensions occur because after the unexpected reset the register 'a' is no longer 0x11, and this causes the game to think that the system used is not a Game Boy Color or Game Boy Advance/SP.
 
As a result, the game will no longer update any color palettes for the background map or for sprites. Those color palettes will be carried over from the moment before the unexpected reset. For example, if triggered with the [[Coin Case glitch]], the previous screen will be the item pack UI, which is covered mostly with a blue palette, but also has some regions with green, red, and pink palettes in order to display those colors. After the glitch is triggered, the game would be "stuck" in a blue palette, and those colored regions can be seen on various screens.
 
More information can be found [https://archives.glitchcity.info/forums/board-76/thread-6645/page-0.html#msg189597 here].
 
==Effects==
 
*The game's display will be colored in a glitchy way, usually with "glitched color blocks".
*The Ho-Oh on the title screen of Pokémon Gold will "show its true colors". (Interestingly, this does not apply to Pokémon Silver.)
** This is caused by the game displaying the title screen legendaries with the player sprite's palette. Normally both legendaries are displayed with a white-and-brown palette so that only their silhouettes can be seen, but Ho-Oh's sprite actually have enough details that will become visible when the same brown colors in the palette are replaced by different colors in the player palette, and Lugia's sprite only uses one of the white colors and one of the brown colors anyway. The fact that the player's orange-and-red palette closely resembles Ho-Oh's "true colors" is merely a coincidence.<ref>[https://youtu.be/Z_z4FOz0Yzo?t=127 Three unexplained side effects of Pokemon glitches] by Crystal_</ref>
*On Pokémon Crystal, the "This Game Pak is designed only for use on the Game Boy Color." screen will appear.
*The girl in the Goldenrod Department Store who enables Mystery Gift will tell the player that Mystery Gift requires a Game Boy Color. <!--Thanks TheZZAZZGlitch for the wording-->
*The Mystery Gift option will not appear on the Continue/New Game/Option screen.
 
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{{YouTube|P-aK0sOXGdc|zachtheglitchbuster}}
<br style="clear:both"/>▼
 
▲<br style="clear:both"/>
==In Pokémon Gold/Silver/Crystal==▼
 
===Procedure (Glitch Dimension 1)===
 
Main article: [[Coin Case Glitches]]▼
 
▲==InExamples (in Pokémon Gold/Silver/Crystal)==
#Talk to the Machop stamping the land at Vermillion City, the Machop in Goldenrod City's basement, or listen to a Machop's cry in the Pokédex.
#Immediately after doing so, use the Coin Case item.
#The game will suddenly reset itself, without resetting the newer color palette back to the default.
 
===Coin Case method===
Alternatively players can use another Pokémon's cry such as Omanyte to give the same effect.
▲''Main article: [[Coin Case Glitchesglitch]]''
 
Using the Coin Case glitch (basically having the player listen to a Pokémon cry and then use the Coin Case), certain Pokémon cries will cause glitch dimensions when the Coin Case is used (when not following the arbitrary code execution steps for Machop, Bellsprout, and other Pokémon). Some may require having not switched item pockets after listening to the cry, or having switched item pockets.
 
Machop was the most known example that causes a glitch dimension, but other Pokémon like Omanyte and Horsea can do it.
'''Video Demonstration:'''
[http://www.youtube.com/watch?v=P-aK0sOXGdc]
 
===ProcedureMove (Glitch00 Dimension 2)method===
A glitch dimension can be caused when accessing the fight menu with a move 00 in the first position, but this is luck based; the game may also freeze.
This Glitch Dimension is caused by using a glitch move in battle such as the equivalent of the [[Cooltrainer move]] in Pokémon ''Gold''/''Silver''/''Crystal''.
#Trade a Ditto with the Cooltrainer move to a G/S/C game.▼
#Use it in a battle and attempt to attack.
The game will reset in different colors than if Glitch Dimension 01 was used. Oddly enough, Glitch Dimension 02 is widely variable. Sometimes the water will be red, purple, or green, and the character sprites may all be blue. Often, however, the colors will change to greyscale when battling.
 
▲#Trade a Ditto with the [[Cooltrainer move]] to aPokémon GGold/S/C gameSilver.
Using the Gold/Silver/Crystal equivalents of the glitch moves TM52, TM53, TM54, or TM55 will also cause this to happen, though this has not been studied thoroughly. Additionally, this may be achieved by first checking to see if all four [[move zero|move zeroes]] are activated, (if not, players can firstly look at another Pokémon's moves in the status without closing it, secondly move back to the Ditto's moveset screen and then use a Mysteryberry on each blank move). Sometimes this will not activate it, so it will have to be done in battle afterwards.
#Access the fight screen.
 
===ProcedureThe game may reset in different colors than if a Coin Case (Glitch Dimension 3)===was used.
A Glitch Dimension can also be triggered by withdrawing or trying to read [[glitch mail]] received from a [[glitch trainer]] in the Viridian Trainer House. It usually results from reading a mail that makes an extra text box appear when highlighted with all the other text boxes from previous [[glitch_(verb)|glitched]] mails with said effect. If the mail does not give glitch text boxes, it will usually not make the Glitch Dimension appear.
 
===ProcedureWalk (Glitchthrough Dimensionwalls 4)method===
Using a walk through walls code, the player can cause a Glitch Dimension by out of bounds of the first floor of their house. Walking out of bounds can cause very variable effects depending on (at least) the tile you stepped into, meaning a Glitch Dimension may not happen through this method.
This variant of the Glitch Dimension can be accessed by calling a "[[glitch caller|glitch contact]]" after the use of a [[game-altering device]]. For example, players can use the [[GameShark]] code 01XXC6D9 (for use on Pokémon Gold and Silver). The player can also have the "glitch caller" call the player to trigger a Glitch Dimension by having the code above activated, as well as the GameShark code to make trainers often call the player - 01048FD1. XX should be any high integer (in hexadecimal) because lower integers correspond to actual trainers defined by the game developers.
 
===ProcedureExample (Glitchin DimensionPokémon 5Crystal)===
Using the Pokémon Crystal glitch moves hex:FC (TM52 in Generation I) and hex:FE (TM54 in Generation I) may cause a Glitch Dimension to happen.
Using a walk through walls code, the player can go right from the first floor of MOM's house. If he or she selects 'YES' on the question that is presented, the game will reset itself into a Glitch Dimension. It is notable that [[Out of bounds|walking out of bounds]] can give very variable effects and may not reset the game into a Glitch Dimension, depending on other related variables and exactly where the player steps.
 
==In Pokémon Red/Blue/Green/Yellow==▼
In Pokémon Yellow, a Glitch Dimension has happened before when trying to encounter Yellow regular [[Missingno.]] on the opponent's side.
 
A Glitch Dimension can be guaranteed on Pokémon Yellow with the code 0178DFDF. The player must press A in the opening at a time such as when a black silhouette of Pikachu can be seen 'running forward'.
===Procedure (Glitch Dimension 6)===
Another variation of a Glitch Dimension can be accessed by battling using [[glitch Pokémon]] or Eggs like those created from the extra Sneasels in the [[Celebi Trick]], although most commonly when such glitch Pokémon are directly encountered the game will act as if the player is in a link battle.
 
Another Glitch Dimension possible with [[arbitrary code execution]] is brown and is nicknamed "[[Pokémon Brown Mode]]".
▲==In Pokémon Red/Blue/Green/Yellow==
 
==Other types of unexpected resets==
 
*Normal resets: The game resets with seemingly no known side effects.
===Procedure (Glitch Dimension 1) - Invalid map data===
Several 'glitch maps' may cause the game to restart itself, once the game attempts to completely re-load the relevant map data. In any case, the game will restart itself with only a black screen after seemingly [[freezing]].
 
*Altered gameplay: The game resets, but with side effects not previously mentioned. These tend to happen less commonly. Example: [[Mailbox glitches|Pokémon Crystal's type 0xFF mail]].
In Pokémon Red and Blue the invalid maps with identifiers of ED (237), EE (238), F1 (240), F2 (241) F3 (242), F4 (243), F9 (249), FA (250), FB (251), FC (252) and FD (253) are affected by this phenomenum. To force the game into taking the player into one of these invalid maps, when entering a door, players may enter the GameShark code 01XX5ED3 in Pokémon Red and Blue using any of the mentioned identifiers above. The equivalent GameShark code for Pokémon Yellow is 01XX5DD3; but in this version, only the identifiers F9-FD will give this effect, because although maps ED, EE, F1, F2, F3 and F4 are invalid, extra data from Pokémon Yellow will contribute to how the game loads map data. Interestingly, those maps do not crash, and the game attempts to load a '[[cycling based glitch map]]'
 
==See also==
Once a black screen is displayed, the player should turn the code off, to prevent a '[[flicker effect]]' where the game will constantly switch between a white and black screen. After a few seconds, the game will reset itself but it will fail to reload the default palette. In theory, this type of Glitch Dimension can be triggered in the Japanese games: Pokémon Red and Green by activating a [[select bug]] such as the [[doko kashira door glitch]] and manipulating the game into taking the player into one of these maps.
 
#[[This Game Pak is designed only for use on the Game Boy Color.]]
===Procedure (Glitch Dimension 2) - Invalid interface data independent to the overworld===
Uncommonly, a Glitch Dimension can be trigerred if the game attempts to manage invalid data on an interface which is independent from the main game, such as the title screen or the [[bp:Pikachu's Beach|Pikachu's Beach]] minigame, although it is more common that the game woild successfully translate data from elsewhere in the game's RAM, either making the game display or manage [[glitchy]] and invalid data or make the game freeze.
 
==References==
For example; when the game attempts to manage the animation frame of Pikachu in the opening screen of Pokémon Yellow, some of these values, if they are greater than 01 (i.e. the {{Explain|second frame|The first frame uses the value 00 (hexadecimal)}}), the game will either freeze or restart itself but fail to reload the correct palette. The player could use the GameShark code 01XX26C5 to directly change the animation frame, 02 is one example which frequently triggers a Glitch Dimension, depending on how the game's ROM image is managed. Another example is when the game attempts to draw invalid points data for when Pikachu lands in Pikachu's Beach. Some of these identifiers, such as F8 will trigger a glitch dimension, whilst other values such as AA tend to freeze the game; the value of the address can be changed by the gameshark code 01XXD9C5.
<references />
 
[[Category:Glitch regionsareas]]
[[Category:Terminology]]
[[Category:Generation I glitches]]
[[Category:Generation II glitches]]
[[Category:Recurring glitches]]
[[Category:Glitch things]]
Retrieved from "https://glitchcity.wiki/wiki/Special:MobileDiff/24068...24093"
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