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Galactic Wrestling: Featuring Ultimate Muscle, known in Japan as Kinnikuman Generations (キン肉マン ジェネレーションズ), is a PlayStation 2 game produced by Bandai and released in 2004. Galactic Wrestling: Featuring Ultimate Muscle is an expansion of the GameCube game Ultimate Muscle: Legends vs. New Generation, which had been released in Japan on November 22, 2002 and in North America on June 5, 2003. The title of Galactic Wrestling, in Japan, is often abbreviated as Niku Gene (肉ジェネ). The game itself has an expansion called Kinnikuman Muscle Generations (キン肉マン マッスルジェネレーションズ), released in Japan on February 2, 2006 for the PlayStation Portable.
Galactic Wrestling: Featuring Ultimate Muscle received "mixed" reviews according to video game review aggregatorMetacritic. In Japan, Famitsu gave it a score of one seven, one six, one seven, and one six, for a total of 26 out of 40.