Karate Champ, known in Japan as Karate Dō (空手道, “The Way of the Empty Hand”), is a 1984 arcade fighting game developed by Technōs Japan for Data East. It established and popularized the one-on-one fighting game genre. A variety of moves can be performed using the dual-joystick controls, using a best-of-three matches format like later fighting games, and it features training bonus stages. It influenced Konami’s Yie Ar Kung Fu and other fighting games.
A separate arcade game that allows two players the option to compete against each other was released in 1984 under the title Karate Champ — Player vs Player. This version would serve as the basis for the home ports of Karate Champ.