From Bulbapedia, the community-driven Pokémon encyclopedia.
Beheeyem is a brown [[extraterrestrial Pokémon]] with an oblong head that features depressions on both sides. It has black, symmetrical lines going down the front of its head. Under the rim of its head, there lay two green eyes with small black pupils. It has a lighter brown "collar" and 4 dots on its chest of the same color. Beheeyem's arms have three finger-like digits: one red, one green, and one yellow. It has a rim underneath its main body, under which are two small legs. It communicates by flashing its multi-colored fingers. Beheeyem can
change the memories of its opponents, being able to erase or even rewrite them.
==In the anime==