Exterminate pesky aliens and the evil overlords.
- Play as Commander P. Jefferson and destroy aliens, rake in money and upgrade your ship to take on even more aliens.
- Battle with ten kinds of spaceship across 16 different levels as you attempt to annihilate five alien generals and steal their unique weapons.
- Kill hordes of extraterrestrials before taking on X, the Supreme Alien God Emperor. And bring peace to the universe.