Smoking Gun is a single player, western themed, vertical scroller, shoot 'em up arcade game. Step into the boots of an Arizona Ranger and fight for justice as ruthless bandits descend upon Hickstown, convinced the lawmen are behind their gang's mysterious disappearances.

Following the mysterious disappearances of members from the notorious Red Rock Raiders gang, the outlaws are hell-bent on vengeance with their sights set on taking Hickstown hostage. As cries for help echo through the Red Rock Valley, the renowned Arizona Ranger, armed with his trusty big iron, rides in to untangle the dire situation confronting the Sheriff and his deputies. Little does he realize the depth and darkness of the abyss that awaits...