Gun.Smoke is an action shooter game for the Nintendo Entertainment System, which had nothing to do with the classic tv show. In this game, the player controls a bounty hunter whose mission is to free Hicksville from the Wingate gang. Pressing B will make the cowboy shoot to the left of the screen, pressing A will make the cowboy shoot to the right, and push both buttons will make the cowboy shoot straight ahead. In order to make the boss to appear, the player must purchase a wanted poster from one of the villagers. New weapons and a horse are also purchasable from the villagers. After defeating a boss, their wanted poster gets plugged with tons of holes.

Here is a patch which converts Gun Smoke's original Mapper from UNROM to MMC3.

Gun.Smoke (USA).nes - NOINTRO
CRC32: 6B8F23E0
MD5: B7323D5CF56F4049E20D44815CA6C45A
SHA-1: 612F2AA339BF1AE54B466F1574752CD753097503
SHA-256: 4AD9629A2BACC158A7F50975869C7DFE533567AE399A5BDC5DF2240286DF259F