Namco themselves released a version for the Family Computer in 1984 as one of the console's first third-party titles, as well as a port for the MSX computer. The Famicom version was later released in North America for the Nintendo Entertainment System by Tengen, a subsidiary of Atari Games. Tengen also produced an unlicensed version of the game in a black cartridge shell, released during a time where Tengen and Nintendo were in bitter disagreements over the latter's stance on quality control for their consoles; this version was later re-released by Namco as an official title in 1993, featuring a new cartridge label and box. The Famicom version was released for the Famicom Disk System in 1990 as a budget title for the Disk Writer kiosks in retail stores. The same year, Namco released a port of "Pac-Man" for the Game Boy, which allowed for two-player co-operative play via the Game Link Cable peripheral. A version for the Game Gear was released a year later, which also enabled support for multiplayer. In celebration of the game's 20th anniversary in 1999, Namco re-released the Game Boy version for the Game Boy Color, bundled with "Pac-Attack" and titled "Pac-Man: Special Color Edition". The same year, Namco and SNK co-published a port for the Neo Geo Pocket Color, which came with a circular "Cross Ring" that attached to the d-pad to restrict it to four-directional movement.