Mewtwo

Mewtwo is a playable character in Super Smash Bros. Melee and possibly Super Smash Bros. Brawl. In the Pokémon series Mewtwo is an artificial Pokémon base on the genetic code of the Legendary Pokémon Mew. He was intended to be the most powerful Pokémon to ever live.

He's number 150 of the original 150 Pokémon discovered.