Dogyuun is a 1992 vertically scrolling shooter arcade video game developed and published by Toaplan. Set on the colonized fictional planet of Dino in the future, where an alien race of metallic robots have invaded a police communication center and held its inhabitants as hostages, players assume the role of two fighter pilots taking control of the Sylfers bomber space fighter crafts in an revenge attempt to overthrow the invaders and free the surviving colonists after one of their comrades is killed by one of them during a reconnaissance assignment.