''Karate Champ'' is [[UrExample one of the earliest examples]] of the one-on-one fighting game, published by Data East Corporation and originally developed by a company full of former Data East employees known as Technos Japan (now Million Co. Ltd.).
Gameplay consists of two fighters ([[ColorCodedMultiplayer one in a white gi and another in a red gi]]) using karate moves to score successful hits against each other. There is no LifeMeter; a player can only win a round by scoring two "points" against his opponent, with the referee judging whether or not a hit is worth a half-point or a full point. The winning player gets to participate in a minigame, and then face off against progressively harder opponents.
A sequel called "Karate Champ: Player vs. Player" was later released. While the single player-only first game took place largely in a karate dojo, the second game had a variety different locations, and [[ExactlyWhatItSaysOnTheTin allowed two players to play against each other]].
!Tropes used in ''Karate Champ'':
* BrickBreak: One of the mini-games.
* CockFight: In the sequel, the two opponents are presented as rivals for a girl's affections. The one who wins gets a SmoochOfVictory from the impressed lady.
* ScoringPoints: There are two kinds: one which determines the outcome of the match, and another traditional point-scoring system for the leaderboards, which doesn't have a direct effect on gameplay.
* SNKBoss: The computer opponent, once a player reaches 8th Degree Belt level.
* UrExample: Generally credited as the first FightingGame.