A vertically scrolling shoot-em-up set in the Wild West, in which the player takes the role of a Billy; a young Sheriff charged with hunting down and killing a number of infamous 'Wanted' outlaws.

Each level is packed with gun-toting bandits and the Sheriff must shoot his way through the stage, before finally taking on the wanted outlaw 'boss' character at the end. Each outlaw wields a special weapon unique to them, such as a Winchester rifle, knives, darts or boomerangs.

Shooting the barrels that litter the levels reveals power-ups such as boots (for extra speed), rifles (for increased range) and bullets (for rapid fire). The game's three directional fire buttons (for firing left, right or ahead) can be combined (pressed Simultaneously) to create a total of eight different firing directions.

When you're on level two, make sure you have a horse when you kill Roy Knife. Once he is dead, walk over his corpse and your horse will be killed. Roy raises from the dead as a sort of indestructible zombie. You can shoot him as much as you like, but he won't die. In this way you can play until you get tired of it.