Karate Champ © 1984 Data East USA, Incorporated.
North American release. Game developed in Japan. See the original for more information; Taisen Karate Dou - Seishun Bishoujo Hen.
Control : Double 4-way joysticks
Players : 2
This Player vs Player version was released in October 1984 (one month after the original version). However, it differs slightly from its single-player sibling. There is a greater variation in backgrounds, for example, with a variety of outdoor locations as opposed to the standard martial arts dojos of the earlier version. The sound effects also seem to be a little 'sharper', with the speech, in particular, much improved.
This version of the game can be seen in the 1988 film Bloodsport.
Nintendo NES (nov.1986) Karate Champ [Model NES-KC-USA] Tandy Color Computer (1985) Karate Apple II (1985) Commodore C64 
(1985) Apple iPhone/iPad (may.20, 2010) "Karate Champ [Model 335387077]" Apple iPhone/iPad (aug.24, 2010) "Karate Champ XL [Model 385462349]"