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 a revenge attempt to overthrow the invaders and free the surviving colonists after their comrade is killed by one of them during a reconnaissance assignment.

Dogyuun is a science fiction-themed vertically scrolling shoot 'em up game reminiscent of Aero Fighters and Recca, where players assume the role of two pilots who took part in a reconnaissance mission on planet Dino.

They take control of the Sylfers bomber space fighter crafts through ten stages in a revenge effort to defeat an invading alien race of metallic robots that have captured a police communication center and its inhabitants after their comrade, Kyle, was killed by one of them.

[2][3][4][5] As far as vertical scrolling shooters go, the game initially appears to be very standard; players start with a single laser beam that can be held on at close range for dealing minimal damage against enemies when not firing.

[4] Similar to Gun Frontier, the game hosts a number of hidden bonus secrets to be found, which is also crucial for reaching high-scores to obtain extra lives.

Three pilots were sent for a reconnaissance assignment in order to determine the current situation before one of them, Kyle, is assaulted and killed by a metallic robot from an invading alien race, indicating that the communication center has been overrun by them and held its personnel as hostages.

[10][11][12][13] When working on the project, Uemura and the team planned on putting emphasis towards visuals capable of making an impact over gameplay as a response from their audience who felt their previous efforts did not impress in terms of presentation and graphics.

However, Uemura would later remark that gameplay suffered as a result due to graphics taking priority during the creation period which lasted longer than previous releases from Toaplan.

[25] Nick Zverloff of Hardcore Gaming 101 praised Inoue and Uemura's artwork and soundtrack respectively, challenge, weapon set and the ability to combine two ships, among other aspects.

praised the detailed graphics, boss fights and soundtrack, regarding it as one of Toaplan's lesser known, but best titles, although he noted the weapon system to be one of its negative points.