The original Assault Gunners was developed by Shade and released for PS Vita in Japan as a digital-only title in June 2012. An English version was never released. The game offers “real robot battles realized by simple controls,” where you defeat robots to clear missions, customize your robots with the 100-plus types of parts you obtain as you progress, and take on boss battles. It also supports up to four players in co-op and battle modes.
The Australian Classification board lists the platform for Assault Gunners HD Edition as “multi platform,” but the board tends to do this even when the game is only releasing on a single platform. That being said, the platform(s) for Assault Gunners HD Edition are currently unknown.
Watch a trailer for the original version below.