The Black Onyx

A documented physical Sega SG-1000 release from 1987.

The Black Onyx was commercially released on physical cartridge / sega my card for Sega SG-1000. This collector entry uses cataloged, game-specific packaging artwork.

Released: 1987 · Exact day not documented
Platform / family: Sega SG-1000
Format / type: Cartridge / Sega My Card
Region: Japan