Rival Schools is yet another fighting game by Capcom. It was originally released as an arcade game in 1997 and was followed up with a PlayStation port in 1998. This game is probably most similar to the Marvel Vs. Capcom games.
While the game play is somewhat similar to the Marvel vs. Capcom games, there are some differences. The controls are simplified with only four buttons instead of six. Also, while you select a team of two characters, the second is only used for special attacks. The PlayStation version, in addition to including the arcade version of the game, also included some enhanced features such as new mini-games and new game modes.
While perhaps not quite as well known as some of Capcom's other fighting games, Rival Schools is still a quality title with enough unique features to make it worthwhile if you are a fighting game fan. In 2012 it was released for the PlayStation Network but only in Japan. A full sequel was released in 2001 in the arcades and for the Dreamcast titled "Project Justice". If you want to play the original though you will likely have to track down an original copy or play it via emulation as I am not aware of any other accessible re-releases. There is some interest in future sequels but nothing planned at the moment.