International Karate + Amiga

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 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.