Infinite money, health.
It has been twenty years since the last Omegacronian invasion, they're now back and you must defend the world once again. Defend your base against 40 waves of enemies comprised of 8 enemy types. Purchase upgrades to increase the power, precision, velocity, and capacity properties of your turret, along with various others.
Point and click shooter, purchase upgrades to beef up your base and power. Use the 1,2,3,4 keys to keep a eye on your power cells.