Ultimate Muscle: Legends vs. New Generation known in Japan as Kinnikuman Nisei New Generation vs. Legends (?????II? ?????VS????) is a wrestling video game based on the anime and manga Ultimate Muscle. It was developed in Japan by AKI Corporation and released in Japan (in 2002) and North America (in 2003) only on the GameCube. It spawned two new expansions: Galactic Wrestling: Featuring Ultimate Muscle released only on PlayStation 2 in 2004 and Kinnikuman Muscle Generations (????? ?????????????) released in Japan on February 2 2006 for the PlayStation Portable. This article contains explanations on the PlayStation 2 and PSP versions as well. In this game the Choujins from the Kinnikuman (Legends) reappear via 3D Polygon and compete against the Nisei Choujins (New Generation) in their younger bodies.