The story of Outlaw takes place in the Old West, where you control a gunslinger who must shoot a moving target as many times as possible within 99 seconds. In two-player mode, each player tries to be the first to hit their opponent ten times.
The gameplay involves navigating through the screen while avoiding obstacles such as cacti, stagecoaches, and breakable walls. You can choose between unlimited fire or a six-shooter, which limits your shots to six before needing to reload. Additionally, you have the option of "getaway," allowing you to move immediately after firing.