Your mission, should you choose to accept it, is to protect the oil tanks at all cost! If the tanks get destroyed, you fail! Priority number 2 is to protect yourself. If you are destroyed, who will protect the oil? Use the arrow keys to drive about. Press the ESC button if you need to pause the game. Use your mouse to aim and click to fire. Click on the ammo icon to change weapons. You must ward off attack for 60 seconds in each level. Try and take on one enemy at a time and watch out for ambush!