Shoot aliens in this action shooting game: Fight 45 arcade style enemies in 15 alien empires and 135 levels.

Shoot whatever moves (or doesn't move for that matter), pick up in-game powerups and earn hundreds of upgrade points to unlock better ships with stronger armor, more powerful cooling systems, six-pack missiles, or a terrifying railgun.

Uncover all the wisdom that is hidden on every planet, fight off wave after wave of alien aggressors, and adjust your strategy to dozens of attack formations and moving styles.