This game is unlike conventional shoot'em ups. Instead of playing as the lone starfighter, you play as the base that is under attack! You have all the weapons in the base at your disposal. Click them with LEFT MOUSE BUTTON to activate them. You have fixed weapons like tanks, mines, spikes, turrets and crusiers - use them as much as possible before they are destroyed. And random weapons (fighter wings and EMP) - use these at any time, but use wisely as their quantities are limited. Good luck!