Using a rocket pack and a radium pistol, the player must fly around the world fighting the escalating Nazi technology. Sometimes this includes shooting down enemy fighters with the radium pistol to intercept enemy shipments. Sometimes the sequences degenerate into bareknuckle fistfights with enemy Nazi guards in order to gain rocket parts, and sometimes he has to disable the defenses of two available lunarium depots to get fuel for both his own rocket pack and the rocket ship he must assemble.