IK+ International Karate+ Gameplay (C64)
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IK+ (International Karate +) is concerning the gameplay almost idential to the game International Karate, however, now 3 karate fighters compete at the same time. Instead of the turn kick and the somersault the fighter now can do the headbutt, the "Flip-Flop" and a splits jump, with which one can throw both fighters to the ground at the same time. All 3 fighters have the same speed, strength and know the same punches and kicks. The fighter that has 6 points first wins the round. The fighter with the least points drops out. After every two survived rounds there is a bonus round, in which you have to repel balls with a shield. If you make it to repel all of the balls you will get a "Survival Bonus" of 5.000 points.
There are the following game modes:
1 player against two computer opponents
2 players (in team or against each other) against one computer opponent
3 players against each other (only possible with the Gold Edition with 4 Player Interface)
Three karateka fight against each other on a beach, trying to be the first to score six points. After every two rounds, there is a bonus game which is either deflecting bouncing balls or kicking away bombs. The C64 version of the game only has the ball bouncing bonus game, and not the bomb bonus game. The game can be played by one or two human players; at least one fighter is always controlled by the computer. Unlike its predecessor, International Karate, there is only one backdrop. However, different parts of the backdrop can be recoloured to several different themes by the players using specific keystrokes. The Amiga, Atari and C64 versions of the game (and possibly other versions, unconfirmed) had a number of "background antics", a Pac-Man would appear, a spider would descend, and a U-boat's periscope would occasionally be seen in the harbour. In addition, pressing a certain key or keys would cause the trousers of all three protagonists to fall down, after which they would do a double-take. Additionally, it was possible (on the Amiga version, at least) to type in four-letter curse words; the game would respond first by rebuking the player for their use of such language, and upon the second offence would reset the game.
Archer Maclean did most of the work on developing the game, and the music was written by Rob Hubbard. Music for the Amiga version was arranged by Dave Lowe. In August 2005, the music from the game was performed at the third Symphonic Game Music Concert in Leipzig, Germany.
The packaging illustration for the Activision Commodore 64 release version of IK+, entitled "Chop 'N Drop", was created by Marc Ericksen.