Gun Master is an arcade game with a straightforward title indicating its core gameplay element: gun use. Further information is needed to determine the specific setting, mechanics, and developer.  The genre could range from a simple shooting gallery to a complex action game.

Gun Master

Gun & Frontier (World)

Gun Ball (Japan)

Gun Dealer '94

Gun Frontier (Japan)

Gun Gabacho (Japan)

Gun.Smoke (US set 1)

Gun.Smoke (US set 2)

Gun.Smoke (US, 851115, set 2)

Gun.Smoke (World, 851115) (version)

Gun.Smoke (World)

Gunbarich

Gunbird (Japan)