Missile Defense 3D is an action arcade game released for the Sega Master System. Utilizing the system's 3D glasses peripheral, it offers an immersive light-gun experience set amidst Cold War tensions. Players take on the role of a defense commander tasked with intercepting a barrage of incoming missiles using a crosshair to target and destroy them. The game combines elements of strategy and quick reflexes, as players must shoot down missiles while managing limited ammunition. Its pseudo-3D graphics and fast-paced gameplay place it in the rail shooter and missile defense sub-genres.