Poké Kid
From Bulbapedia, the community-driven Pokémon encyclopedia.
A Poké Kid (Japanese: ポケモンごっこ Make-believe Pokémon) is a type of Pokémon trainer that first debuted in the Generation IV games. They are female childen that are possibly the children of PokéFans who also wear Pikachu costumes. Outside of battle they appear to be just an ordinary Pikachu.
Like their costumes, they mostly use Pikachu and Pichu as their Pokémon.
Appearance
Image from Pokémon Diamond and Pearl |

