It is found in the Pokémon Yellow version only -- it can only be found by doing Method #3 of the Mew glitch with Pokémon with a special stat of 196 (it can also be obtained if a PokéWTrainer, which is X - x's red/blue equivalent, is traded from the Red/Blue versions to Yellow).
At the Game Boy Tower in Pokémon Stadium, when X - x appears, the screen where X - x is will appear purple. X - x's number is #203 and its starting moves are Skull Bash, Flash, Constrict and Waterfall. Its types are Blank and Normal. Although most glitch Pokémon have bizarre, often low, base stats, X - x's base stats are quite high and evenly distributed. In fact, its Attack, Defense, and so on are all around 300 when it is level 100, with HP around 400.
X - x has no specific habitat because it was never programmed to be in a specific area, nor was it ever programmed for the player to find it. Since it only exists in Generation I, it must exist in the Kanto region. Its habitat is confirmed to exist in any location where a trainer in the Red/Blue/Yellow versions can be escaped from before being seen (see Mew glitch). Theoretically, it could also exist in some Glitch City-like location.
Game data
Game locations
This Pokémon was unavailable prior to Generation I.
As it learns the HM technique as a starting move, and cannot be traded to any game containing a move deleter, X - x is completely incapable of not knowing Flash (barring the usage of a cheating device).
This glitch Pokémon article is part of Project GlitchDex, a Bulbapedia project that aims to write comprehensive articles on glitches in the Pokémon games.
