Rohga: Armor Force (aka. Wolf Fang) is a side-scrolling sci-fi shoot 'em up developed and published by Data East. It is a sequel to their earlier game Vapor Trail, exchanging the previous game's fighter jets for mecha suits.
Originally published in 1991 for arcades in Japan under the name Wolf Fang: Kuhga 2001, it was retitled Rohga: Armor Force for its international release. The game was later ported to the PlayStation and Saturn by Xing Entertainment. The PlayStation port was made available as a PSN download in Japan in 2010, and is being brought to western market by publisher MonkeyPaw Games as an untranslated PSOne Import title.