Ghost town with a back passage through a steep canyon that the cowboy must cross to rendezvous with his partner-in-crime.
Rocky valley with a hidden mine area and treasures. Collect enough gold to pay the boatman near the river in order to move past the area!
Cowboy in space! Actually, the idea was that the player has just regained consciousness on a spaceship that had been wrecked by something on the loose, still onboard. The player then has to make it to the emergency life ship alive.