From the far reaches of Neptune, to the safe haven of Earth - battle your way across the universe in this exciting adventure based on the popular arcade game. Suspense builds with every beat of thrilling and dramatic music - perhaps unlike any video game music you've ever heard before! To these compelling strains, you'll fend off unremitting waves of spiraling, swirling alien ships. Piloting your spacecraft in a circular flight pattern, blast these fiendish intruders with your rapid-fire lasers - before they vaporize you. And watch out for killer meteors and deadly satellites along the way!