International Karate + (aka IK+) was a karate fighting game produced by System 3, back in the 1987, for the three 8bit home-computers, Commodore 64, Amstrad CPC and Spectrum ZX. In 1988 it was converted for the Atari ST and Amiga (1 Disk 3.5").
Story/Gamplay: In this game you play the part of one karateka who fights against 2 others (1 can be controlled by a second player), in order to gain points and belts. There are also some bonus sub-games where you must be quick in kicking away bombs or by deflecting balls using a type of shield. IK+ was one of the best and more fun to play karate games during the 8bits and 16bits home computers era. Win points, get the highest belt and be the new master!
Graphics/Sound: The Atari ST version offers the same quality in details as the Amiga version (but with fewer no. of colors), and the character animation is nice and smooth. The background image does not change and is a wonderful sunset near a temple! Much like the Amiga version, the Atari ST version features digitized sound FX, punches and kicks taken from karate/fighting movies and cries that remind us of Bruce Lee. The music score, composed by Rob Hubbard, was just a conversion from the 8bits Amstrad computer, with 3-channel chip sound.
In-game music sample:
Some videos belong to retroshowcase.com (indicated); others not
CPU: Motorola 68000 16/32bit at 8mhz. 16 bit data bus/32 bit internal/24-bit address bus. MEMORY: RAM 512KB (1MB for the 1040ST models) / ROM 192KB GRAPHICS: Digital-to-Analog Converter of 3-bits, eight levels per RGB channel, featuring a 9-bit RGB palette (512 colors), 320x200 (16 color), 640x200 (4 color), 640x400 (monochrome). With special programming techniques could display 512 colors on screen in static images. SOUND: Yamaha YM2149F PSG "Programmable Sound Generator" chip provided 3-voice sound synthesis, plus 1-voice white noise mono PSG. It also has two MIDI ports, and support mixed YM2149 sfx and MIDI music in gaming (there are several games supported this).