You are an officer responsible for deploying the experimental Skippingstone missile against the cities of your nation's enemies. This unusual missile has no targeting system, but can be guided by magnetic towers toward its target. Click and drag to move the towers, then press space to launch them. For reasons known only to your superiors, the enemy cannot prevent you from moving the towers at will. And, due to a very aggressive weapons manufacturing deal, you can use as many missiles as you want.