Bomb Jack

Bomb Jack is an action game, originally developed and published by Tehkan (currently as Koei Tecmo Games) for Arcade machines in 1984. In this game, players help a hero named Jack collect bombs all around the world while avoiding monsters with morphing powers in order to increase points. Each stage features a background from certain parts of the world, including several different musics.

Sega brought Bomb Jack to SG-1000 in 1985, only in Japan. This conversion omits most of the graphical backgrounds and most music was been replaced with Sega's own original compositions. Bomb Jack was only released in My Card format, requiring a Card Catcher to be used unless played on Sega Mark III or the Japanese and Korean variants of Sega Master System. It was released in Australia as a rental-only cartridge, with unlicensed releases in Taiwan and South Korea on the standard cartridge format, both omitting mentions of Tehkan and Sega.

The SG-1000 version was ported to MSX by fans and released in 2004 without a license from Tecmo, Sega, and/or ASCII.