Since its debut, Mewtwo has appeared in other Nintendo games. In "Pokémon Stadium" and "Pokémon Pinball", Mewtwo appears as a final boss after all competitions have been completed. In "Pokémon Puzzle League", Mewtwo serves not only as the final opponent, but also as the main antagonist responsible for the game's events. Other games, such as "Super Smash Bros. Melee" and the "" series, have featured Mewtwo as an unlockable player character that must be defeated before it may be used, while others like "Pokémon Snap" have featured the character in cameos, appearing once certain conditions have been met. For all appearances in which the character has spoken dialogue, Mewtwo is voiced by Masachika Ichimura, with the exception of "Pokémon Puzzle League", where it is voiced by Philip Bartlett, and "Super Smash Bros. for Nintendo 3DS" and "Wii U", where it is voiced by Keiji Fujiwara.