Five question marks

????? appears in Generation II games. It is the result of forcing a nonexistant Pokémon number 000, 252, 254, or 255 to appear. Although all these numbers appear identical (as just a nonsensical assortment of various graphics from other parts of the game), they each use a different palette, so #252 appears gold, #000 appears blue, and so on.

When viewing the status screen of any ?????, it may not render correctly and may even cause the game to stop functioning correctly. Usually the status screen reports an abnormal value under "level up" that indicates the quantity required to reach the next level. Types may exist and may not, for instance, #252 reports that its types are "Fire/Normal" whereas #000 apparently reports its types as "Normal/GGQRRROO ROCKET" due to rendering error.

????? does not have its own battle sprite besides the one seen by the trainer battling it. When a trainer uses ?????, it will borrow the last sprite used in the battle area, be it the original trainer that appears before the battle starts, or another Pokémon that has been switched out.

It has no Pokédex entry, however it has footprint data. The footprint is identical to that of Donphan, with the exception that the numbers 252, 253, 254, and 255 are printed in them for the appropriate Pokémon.