Pokémon Pokopia calls its unusually pale Pikachu character Peakychu.
Peakychu is one of the distinctive Pokémon neighbors featured in the game's restored world. Nintendo's official game information describes the character as an unusually pale Pikachu, giving the familiar species a visual variation and a special in-game name.
The name is easy to confuse with Pikachu itself, which is also a major Pokémon species and appears in many Pokémon games. Peakychu is not a new evolution or a separate species in the traditional Pokédex sense; it is a named character presented as part of Pokopia's unusual community.
Other special Pokopia characters use similar naming ideas. Mosslax is a Snorlax with moss growing over it and a flower on its head, while Smearguru is a colorful, prolific painter associated with Smeargle. These character variations help make Pokopia's settlement feel different from a standard Pokémon region.