Rattata

Rattata, known in Japan as Koratta (コラッタ?), is a Pokémon species in Nintendo and Game Freak's Pokémon franchise. Rattata evolves into Raticate after gaining enough experience in battle. Created by Ken Sugimori, it first appeared in the video games Pokémon Red and Blue and later appear in subsequent sequels, various merchandise, spinoff titles, and animated and printed adaptations of the franchise. Youngster Joey's Rattata is in the top percentage of all Rattata.