Arcade game flyer
|Mode(s)||Up to 2 players simultaneously|
|Display||Vertical orientation, Raster, standard resolution (Used: 224 x 256)|
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 is credited with establishing and popularizing the one-on-one fighting game genre. A variety of moves could be performed using the dual-joystick controls, using a best-of-three matches format like later fighting games, and it featured training bonus stages. It went on to influence Konami's Yie Ar Kung Fu and other fighting games.
A separate game that allows two players the option to compete against each other was released also in 1984 under the title Karate Champ — Player vs Player.
Gameplay consists of a two dimensional fight between Karate characters wearing white and red gi, followed by various bonus rounds for the successful player. This pattern repeats itself in the next, more challenging round set against a new background. Unlike most later fighter-type games, there are no health bar or hit points. A hit successfully landed ends the round and earns the player or his opponent either one point or half point (along with a numeric score for the top ten but this has no effect on winning a match per se). The first to score two points is the winner. If the player loses a battle, the game ends. The game also featured some early speech synthesis, in which the judge would call out such phrases as "Fight!" or "Winner!" It's also spoken in Japanese in the Japanese version.
Player vs. Player edition
Karate Champ — Player vs Player (対戦空手道 美少女青春編 Taisen Karate Dō: Bishōjo Seishun Hen?, "The Competitive Way of the Empty Hand: Pretty Maiden Edition") is a sequel to Karate Champ that was released for the arcades shortly after the original during the same year. Like its predecessor, it was published by Data East, but it is unclear if it was developed by Technos or by Data East.
The sequel is very similar to the original in the sense that they use the same hardware, have the same sprites and title screen, and the play mechanics are essentially the same although the computer AI and speech synthesis is greatly improved along with control and hit detection. Whereas the original game started with the first level taking place at a dojo and all the following levels taking place at the same tournament stadium, Player vs Player has the characters fighting it out over girls in 12 different locations around the world.
The NES version was released in North America on November 1986. Like the home computer versions, the NES port was inspired by the Player vs. Player edition of the arcade game. The port was later released in Japan for the Disk System on July 22, 1988, but never made it to the cartridge-based Family Computer. Data East published this port of the game, both in North America and Japan.
An emulation of the arcade version was released by Hamster for the PlayStation 2 as part of its Oretachi Geasen Zoku Sono lineup. Only the original game was included (the Player vs. Player version being ignored from the compilation).
On May 7, 2010 it was announced for release on the iPhone OS platform by developer Revolutionary Concepts. Although visually identical to the 1984 arcade edition of Karate Champ — Player vs Player, the iPhone version is actually a port rather than an emulation, as it includes new features such as a difficulty mode as well as the ability for players to compete through a gaming network via Bluetooth or Wi-Fi. In August 2010, the game was released for the Ipad under the title Karate Champ XL, again developed by Revolutionary Concepts. Karate Champ XL is basically the same game as the iPhone's Karate Champ, but with additional attributes over its phone counterpart such as a split screen option. 
The emulated version from Hamster was also re-released in 2015 for the PlayStation 4 as part of its Arcade Archives compilation which, unlike Oretachi Geasen Zoku Sono, was also distributed outside of Japan.
Publisher Data East brought suit against Epyx alleging copyright infringement for its game World Karate Championship. The case went to the ninth circuit court. It was held that the typical purchaser of the games would not find them substantially similar.
According to Twin Galaxies, Jack Gale, of North Miami Beach, Florida, USA, scored a world record 259,800 points on Karate Champ, on June 28, 1987, during the 1987 Video Game Masters Tournament.
Ahoy! wrote that the Commodore 64 version "isn't quite as electrifying as the arcade version, but it's an entertaining action-strategy test". The magazine concluded that "The learning curve is steep, but ... When the joysticks are in the hands of two practiced gamers, it is one of the most exciting games to hit the computer screen in a long time".
Author Clayton Crooks released Karate Champ for mobile devices in 2012. The game received favorable reviews from fans and reviewers alike and had an overall excellent reception.
- Data East v. Epyx, 862 F. 2d 204, 9 U.S.P.Q.2d (BNA) 1322 (9th Cir. 1988).
- Ryan Geddes & Daemon Hatfield (2007-12-10). "IGN's Top 10 Most Influential Games". IGN. Retrieved 2009-04-14.
- "Data East and Capcom Settle their Disputes". Electronic Gaming Monthly. Ziff Davis (66): 68. January 1995.
Data East created the one-on-one fighting game genre in the 1980s with Karate Champ ...
- Hodapp, Eli (2010-05-07). "Classic Fighter 'Karate Champ' Gameplay Video Released". Retrieved 2010-05-07.
- Katz, Arnie (January 1986). "Karate Champ". Ahoy!. pp. 53–54. Retrieved 2 July 2014.
- "Karate Champ on the App Store". App Store. Retrieved 2015-11-15.