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Major glitches of the Pokémon series

GB.png Arbitrary code execution GB.png

0x1500 control code arbitrary code execution (Crystal) | Cart-swap arbitrary code execution | Generation I custom map script pointer | Generation I invalid meta-map scripts | Generation I item ("8F", "ws m", "-g m", "5かい", "てへ" etc.) | Generation I move ("-", "TM42") | Generation I Trainer escape glitch text boxes | Generation II bad clone | Generation II Burned Tower Silver | Japanese Crystal Pokémon Communication Center SRAM glitches | Coin Case glitch | Generation II glitch Pokédex sortings | Pikachu off-screen glitch ACE | OAM DMA hijacking | Pikachu glitch emote | Generation III glitch Pokémon summary | Generation III glitch move animation) | Remote code execution | TM/HMs outside of the TM/HM pocket | ZZAZZ glitch Trainer FC

Bulbasaur.png No further extensions Bulbasaur.png

Cloning | Item duplication glitch (Generation I) | Pokémon merge glitch ("Q Glitch", Generation I) | Time Capsule exploit | Bug-Catching Contest data copy glitch (Generation II, Japan only) | Berry glitch | Battle Tower Lati@s glitch (Generation III) | (Mimic) Transform Rage glitch (Generation IV)

Transform held item glitch (Generation IV, Japan only) | Mimic glitch (Generation IV, Japan only)

Bruno.png Buffer overflow techniques Bruno.png

99 item stack glitch | LOL glitch | Rival LOL glitch | Instant LOL glitch | RAM LOL glitch | Out of bounds LOL glitch | blockoobLG | Instant encounter infinite chain glitch | LGFly | Super Glitch (Generation I) | Party remaining HP glitch | Super Glitch (Generation III) | Text pointer manipulation mart buffer overflow glitch | CoolTrainer♀-type move | Double distort CoolTrainer♀ corruption | Yami Shop glitch | Party Pokémon box data shift glitch | Unterminated name glitch item instant encounter (Japanese Red/Green)

Ball.png Item stack duplication glitch (Generation I) Ball.png

Generation I expanded items pack (Glitch Rocket HQ maps, Map FE (English and non-English European Yellow) | Map script pointer manipulation (arbitrary code execution | Map script pointer item ball manipulation) | Text pointer manipulation (arbitrary code execution | Item ball manipulation | Mart buffer overflow) | Trainerless instant encounter glitch

PC.png Bad clone glitch (Generation II) PC.png

????? party overloading (Type 0xD0 move glitch | ????? map corruption | Celebi trick | Celebi Egg trick | Shiny Celebi trick | Glitch move map corruption | Overloaded party map corruption | Glitch Unown (Glitch Unown map corruption) | Duplicate key items glitch (Infinite items and item creation, Expanded Balls pocket (Wrong pocket TM/HMs, Glitch Pokédex categories))

Lab pass.png Closed menu Select glitches (Japanese Red/Green) Lab pass.png

Dokokashira door glitch (International) | Fossil conversion glitch (international) | Second type glitch | Skip to Level 100 glitch | Trainer mutation glitch | Walk through walls (International) | Lift glitch | Badge describer glitch

Gromeg berry.png Pomeg glitch (Generation III) Gromeg berry.png

Pomeg data corruption glitch ("Glitzer Popping") | Charm glitch

Darkrai.png Voiding (Generation IV) Darkrai.png


Broken escalator glitch (Japan only) | Elite Four door glitch (Japan only)

Lying old man.png 2x2 block encounter glitches (Generation I) Lying old man.png

Left-facing shore tile glitch (in-game trade shore encounter trick, Old man trick, Trade link up shore encounter trick, Fight Safari Zone Pokémon trick) | Viridian Forest no encounter grass tiles glitch

Glitchtile.png Glitch City Glitchtile.png

Safari Zone exit glitch | RAM manipulation | Out of bounds Glitch City (Generation II) | Slowpoke Well out of bounds corruption (French Gold/Silver/Crystal)

RBYPC.png Large storage box byte shift glitch RBYPC.png

Storage box remaining HP glitch | Generation I max stat trick

Pikachu.png Pikachu off-screen glitch Pikachu.png

Trainer corruption glitch

Tereka.png SRAM glitches Tereka.png

Generation I save corruption | 255 Pokémon glitch | Expanded party encounter table manipulation (Generation I) | Send party Pokémon to a new game (Generation I) | Generation II save corruption | Mailbox glitches | Mystery Gift item corruption | Trainer House glitches

Ditto.png Trainer escape glitch Ditto.png

Death-warp | Ditto trick | Experience underflow glitch | Mew trick | Text box ID matching | Meta-map script activation

Brock.png Walk through walls Brock.png

Ledge method | Museum guy method | Rival's effect | Select glitch method (International Select glitch method), Brock Through Walls

Surf.png Surf down glitch Surf.png

Grass/rock Surfing glitch (Spanish/Italian only) (adaptions: Submerge glitch (international)) | 8 8 (0x7C) grass/rock surfing glitch (English Red/Blue))

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PRAMA Initiative a également une page sur Tweaking.
Bulbapedia also has an article about Tweaking.
A void has appeared due to Tweaking movements.

Tweaking or Holepunching is a glitch in Pokémon Diamond, Pearl and Platinum, Pokémon HeartGold and SoulSilver; in which specific fast movements can create a void on the map or otherwise have the game improperly load a map connection. It can also be used for tasks such as removing the Snorlax in Vermilion City in HeartGold and SoulSilver.


In Tweaking, the game unsuccessfully loads nearby map data which was previously not present on the screen. Within these games maps are broken up into 32x32 squares which are only visible at any one time. When players move out of this region, the next 32x32-tile square is loaded in order to replace the tiles two areas behind them. However, when a player is moving at relatively higher speeds and in specific patterns in between the points at which extra map data is loaded, the game will fail to load the map data properly.


This glitch is very similar to the Elite Four door glitch which only existed in Japanese versions of Pokémon Diamond and Pearl, and was known by many fans as the "Darkrai and Shiemi glitch", as a slight bug in the map of Elite Four Aaron's room allowed the player to surf through the door and run across the blank spaces which occupy other in-game maps.

As a result of this, players could not only get to nearby areas, such as the Hall of Fame room, but with meticulous planning, they could also access Fullmoon Island and Flower Paradise in order to catch Darkrai and Shaymin (whose name was at that time not officially translated into English and was simply romanized by fans as 'Shiemi'). However, after the release of later versions of Pokémon Diamond and Pearl, Nintendo had fixed the Elite Four door glitch after many players complained about becoming stuck in "the void."

After a fairly long time period of disappointment from some fans of the Surf through Elite Four door glitch, a few months after English versions of Pokémon Diamond and Pearl, the Tweaking glitch was first discovered in areas such as Jubilife City and the route below Solaceon Town by performing the method described above.

When the Tweaking glitch has been performed successfully, the player will hopefully be able to travel through a black "abyss" (invisible abyss) when he/she enters a building from behind, so that he or she can access a desirable location. However, sometimes the player cannot access the correct abyss and occassionally the game may freeze. If the player wants to escape the void, however, they can use the moves Fly, Dig or Teleport if possible, enter a building or other warp.


A method for discovering Arceus via a trick known as the 'retire glitch' in which the player retires as if they were in Pal Park was discovered in January 2016.

This was much later than the discovery dates for Darkrai and Shaymin tweaks.

This trick works by running Hall of Origin's script 3 upon choosing to retire.

Additionally segments of the Hall of Origin were originally available through the use of Tweaking (without the retire trick) in the past.

Void exploring

Tweaking and Void Exploring are often regarded as two completely different glitches because of the fact that graphics and collision data has to be activated after exploring the void for a player to access an area as it would appear in normal gameplay. Void Exploring by itself (if performed wisely) is safer than a complete tweaking run, as it is easier to ensure that the player does not trap his or herself so that he or she cannot escape and it is easier to ensure that the player does not save in an invalid map location or a map with no location data (such as the tentative Jubilife Gym), thus crashing the game with a black screen. When Void Exploring, crashes from invalid map data, called BSoDs (Black Screen of Death) are still possible by testing and using the Explorer Kit (this is not to be confused with a Blackout or Freeze, as a Freeze occurs when an unexecutable script is attempted to be executed, and a Blackout is a temporary absence of graphical data, caused by any number of things). If any flag is activated in-game via Tweaking, for example by first recieving the Pal Pad in a downstairs Pokémon Center area, this will also affect the player's relative map location in some way.

Requirements for the Tweaking glitch (presuming that the player wants to catch Darkrai or Shaymin)

  • A bicycle in order to tweak
  • Having gone underground at least once.
  • Use the Step Counter application for the Pokétch (highly recommended)
  • Any Pokémon with a move such as Fly, Dig or Teleport, because the player can become trapped unless they have already activated the event referring to that Pokémon (Darkrai/Shaymin), enter a warp, or save in Fake-Sinnoh.

Note: If you are in the void and want to save, but you can't open the menu, don't use the Explorer Kit. If you can't open the menu, it's probably a bad idea to save.

See also

External links

Easy void tweak:

YouTube video by Zowayixx


YouTube video by Aera


YouTube video by Crystalmourne

Arceus (via 'Retire glitch'):

YouTube video by Cryo

Hall of Fame:

YouTube video by MKDasher

Useful YouTube channels