Paper Mario: The Thousand Year Door is a game for the GameCube. It is the second Paper Mario game. Its sequels are Super Paper Mario, Paper Mario: Sticker Star, Paper Mario: Color Splash, and Paper Mario: The Origami King. In it, Mario has to find the seven Crystal Stars to open the Thousand Year Door. Also, Peach gets kidnapped, and Mario has to save her from the X-Nauts. After each chapter, there are levels where they player plays as Bowser and Peach. It is an RPG, and has a lot more plot than most Mario games.