Rival Schools: United by Fate, known in Japan as Private Justice Academy: Legion of Heroes, is a 1997 3D fighting game produced by Capcom originally released as an arcade game on Sony ZN-2 hardware. Rival Schools revolves around tag team battles between groups of students from various schools in a Japanese city, and uses a comical and humorous style. Sakura Kasugano from Capcom's Street Fighter series also appears as a character in the game.

An updated and expanded two-disc version of the game was ported to the PlayStation in 1998 with new minigames and a new game mode called Nekketsu Seisyun Nikki, featuring visual novel content (this game mode was removed from the NA and PAL versions of the game). A further enhanced Japan-exclusive version of the game called Private Justice Academy: Nekketsu Seisyun Nikki 2 was released next on the PlayStation, featuring an improved version of the aforementioned game mode, as well as 2 new characters. A proper sequel called Burn! Justice Academy, known internationally as Project Justice or Project Justice: Rival Schools 2, was released as an arcade game in 2000 and shortly afterwards ported to the Dreamcast.