 A NES port followed in 1989, developed by Sakata SAS Co, and a version for the TRS-80 CoCo 3.Ocean developed and published a version for the Game Boy in 1990.In 1989, Ocean released a different "Robocop" game that only bore a loose resemblance to the arcade; this version was produced for the Commodore 64, MSX, ZX Spectrum, Tandy Color Computer 3 and Amstrad CPC, as well as PC compatibles, meaning that PCs ended up with two entirely different "Robocop" games for North American and European audiences.