Renegade is a side-scrolling beat-'em-up developed by Technos Japan and distributed by Taito for the arcades in 1986. The player controls a street brawler who must face four different gangs in order to rescue his girlfriend being held captive by a mob boss. The game was released in Japan as Nekketsu Kōha Kunio-kun, with this version of the game revolving around a high-school delinquent named Kunio who must stand up against a series of rival gangs frequently targeting his classmate Hiroshi. In order to make the game more appealing for the west, Technos produced a graphically-altered version with a visual style inspired by the 1979 film The Warriors, changing the looks of some of the game's characters and scenery. The first game in the Kunio-kun series, Renegade was ported to a variety of consoles and computer platforms.