Gunstar Heroes is a 1993 run and gun video game developed by Treasure and published by Sega for the Sega Genesis. It was Treasure's first developed video game. The premise is centered around a pair of characters, the Gunstars, in their efforts to stop an evil empire from recovering four powerful gems. The characters can fire guns and perform a series of acrobatic maneuvers to fight enemies across each stage. There are four weapons which can be combined with one another to create different shot types.