Quoted By:
>When viewed in Pokémon Stadium, Missingno. will appear as a substitute doll, while in Pokémon Stadium 2, Missingno. will show up as a Ditto, and if the game is saved via Stadium 2, will then become a Ditto permanently. Capturing Missingno. in the Game Boy Tower in Pokémon Stadium may cause the cartridge to become unable to be played with Pokémon Stadium.
I guess it will turn into Ditto or a Pokedoll
