Bandits have kidnapped the Sheriff's girl, and now he is cornered in the desert by a gang.
Use the dual dial controls to move around the play area in one direction and shooting the bandits in another. The bandits move around the edge of the play area shooting at you, and you can use the walls to avoid their bullets.
Bandits will also run into the play area, making them easier to hit, but giving you less room to move. Clear all of the bandits to move on to the next round.