Pokémon merge glitch

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Major glitches of the Pokémon series

Arbitrary code execution

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

No further extensions

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)

Buffer overflow techniques

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)

Item stack duplication glitch (Generation I)

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

Bad clone glitch (Generation II)

????? 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))

Closed menu Select glitches (Japanese Red/Green)

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

Pomeg glitch (Generation III)

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

Voiding (Generation IV)


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

2x2 block encounter glitches (Generation I)

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

Glitch City

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

Large storage box byte shift glitch

Storage box remaining HP glitch | Generation I max stat trick

Pikachu off-screen glitch

Trainer corruption glitch

SRAM glitches

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

Trainer escape glitch

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

Walk through walls

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

Surf down glitch

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

(view, talk, edit)
PRAMA Initiative a également une page sur Pokémon merge glitch.
Bulbapedia also has an article about Pokémon merge glitch.

The Pokémon merge glitch, previously/also known as the Q Trick is a glitch in Pokémon Red, Blue, and Yellow as well as Pokémon Gold, Silver and Crystal, discovered by ACE91.

Using a Pokémon which has an index number of 255 (i.e. 'M (FF) in Pokémon Red and Blue, Q in Pokémon Yellow, ????? (FF) in Pokémon Gold, Silver and Crystal) it is possible for the player to create a Pokémon known as an unstable hybrid Pokémon, which has the attributes of two Pokémon.

This glitch allows the player to give nearly any attack to any Pokémon without the use of a cheating device. The Pokémon merge glitch can also make a Pokémon have the stats and type of another Pokémon.

In Generation I

Obtaining 'M (FF) or Q

For the Pokémon merge glitch, the player should first obtain either an 'M (FF) in Pokémon Red and Blue or Q in Pokémon Yellow.

'M (FF) can be obtained in Pokémon Red and Blue with CoolTrainer♀ corruption or LOL glitch by having a specific spot in a Route 1 Glitch City from the Safari Zone exit glitch as the last place the player opened the Pokémon menu. It can also be obtained by trading a Q over from Pokémon Yellow.

Q can be obtained in Pokémon Yellow either by evolving a 4 4 Hy (which can be obtained with the Ditto Trick using a Special stat of 192), or trading an 'M (FF) from Pokémon Red and Blue.

Both 'M (FF) and Q may also be obtained with the Pokémon Bank hex:FF glitch Pokémon glitch, international fossil conversion glitch or arbitrary code execution.


1. Deposit any Pokémon into an empty box.
2. Deposit 'M (FF) or Q.
2. Deposit a Pokémon below the 'M (FF) or Q (e.g. Charmander). This will be the 'donor' Pokémon for the unstable hybrid Pokémon.
3. Deposit a Pokémon below the third Pokémon (e.g. Staryu). This will be the 'recipient' Pokémon for the unstable hybrid Pokémon.
4. Withdraw the first Pokémon in the box.

In this example, the Pokémon merge glitch will have created both a 'M (FF) or Q/Charmander hybrid and Charmander/Staryu hybrid.

The "Charmander" will have Staryu's name, moves and palette but will be able to learn moves a Charmander would be able to by TM/HM.

It can be stabilized into a Charmeleon through evolution, or back into a Staryu either by depositing it into the Pokémon Day Care and out again or taking the Pokémon into Pokémon Stadium 2 (English). It cannot be traded into Pokémon Gold, Silver and Crystal until it is stabilized.

YouTube video by glitchedgamer

Obtaining Shiny Pokémon

Since the hybrid's DVs will be those of the recipient Pokémon, it is possible for the player to create a new Shiny Pokémon. It can be stabilized by evolving the end result unstable hybrid. For example, if the Staryu mentioned in the section above was originally Shiny, the Charmander/Staryu hybrid may be evolved to become a stable Shiny Charmeleon.

In Generation II

PRAMA Initiative a également une page sur Pokémon merge glitch.

Obtaining ????? (FF)

The Pokémon merge glitch is possible with a ????? (FF). A ????? (FF) may be created by obtaining a ????? (00) from the bad clone glitch and converting it into ????? (FF) with ????? party overloading.

The player should have a party of six Pokémon; and then bring the ????? (FF) to the top of the party. They should then use 'move PkMn without Mail' to bring another Pokémon to the top. This will convert the ????? (00) into a ????? (FF).


The player should set up a party like so:

  • Pokémon 1
  • Pokémon 2
  • ????? (FF)
  • Caterpie
  • Shiny Gyarados
  • Growlithe

Upon depositing Pokémon 1 or 2, the Pokémon below ????? (FF) will hybridize. Caterpie will become a ????? (FF)/Caterpie hybrid, Shiny Gyarados will become a Caterpie/Gyarados hybrid (which can be evolved to become a stable Shiny Metapod) and Growlithe will become a Shiny Gyarados/Growlithe hybrid (which can be taught water moves and taken into the Day Care and out again to revert back into a stable Growlithe).

YouTube video by ChickasaurusGL

See Also