Glitch City Laboratories Archives

Glitch City Laboratories closed on 1 September 2020 (announcement). This is an archived copy of an article from Glitch City Laboratories wiki.

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????? (FC)Generation II glitch Egg (Crystal)????? (FE)
Please note that some of the data described here may not be fully reliable if it depends on the contents of writable memory, such as RAM; WRAM; SRAM.

More research is needed for this article.

Reason given: Document more effects of it. Can a Glitch Pokémon evolve if its sprite and name are "stable" enough? Are there many glitch cries available for Glitch Pokémon? List Glitch Type Sprites that could cause interesting effects. Study the causes and effects of the corruption of the PC Pokémon Selection in Fr/Lg. Test again the effect of Pokédex entries of Glitch Pokémon.

; when specified as an Egg that hatches from itself, or when the game attempts to load data for Pokémon 253 is glitch Pokémon in
  • REDIRECT Template:Crystal.

    When faces a wild Pokémon, its typing will change to that of the wild Pokémon.

    When faces a Trainer, its typing will change to that of the first Pokémon sent out.

    Similarly, the typing and base stats of an opposing wild Egg are taken from the first Pokémon sent out by the user in a wild battle, or a Pokémon that was out before the wild Egg was sent out in a Trainer battle.


    By level up

    (No known moves)

    By TM/HM

    (No known moves)

    Base stats


    Pokédex entry

    Type effectiveness



    (None known)

    Methods to obtain

  • Byte shifting via (00) or (FF) (available through stabilizing a bad clone or arbitrary code execution) (e.g. byte shift a total experience of 253 or 64768-65023 and then stabilize the glitch Pokémon at the Day Care); unconfirmed.
  • ????? party overloading roaming Pokémon manipulation (253 Attack).
  • Arbitrary code execution (e.g. through 0x1500 control code arbitrary code execution, TM33 outside of the TM/HM pocket; glitch Pokédex mode 9).


    's Pokédex entry may freeze the game sometimes, and not freeze the game at other times.