Pokémon Pokopia calls the Pikachu that cannot generate electricity Peakychu.
Peakychu is one of the unusual Pokémon characters Ditto encounters while restoring the world. Unlike an ordinary Pikachu, this character has lost the ability to produce electricity, giving it a personal problem that fits the game’s theme of Pokémon adapting to a damaged environment.
The name is a character nickname, not a new species or an evolution. Pikachu remains the underlying Pokémon, while “Peakychu” identifies this particular individual in Pokopia’s story.
Peakychu is one of several named special Pokémon in the game. Other examples include Smearguru, Mosslax, Chef Dente, DJ Rotom, and Tinkmaster. These names help distinguish story characters from ordinary Pokémon encountered during exploration and reflect their unusual talents, histories, or adaptations.