Your mission in this jet shooting game is to defend the Skies. Use the ARROW KEYS to control your jet. Hold SHIFT or press "A" KEY to fire cannon. Hit "Z" KEY to fire a missile and press "X" KEY to drop a bomb (available in mission 3 only). You will receive a number of stars for every enemy jet you destroy. You can use earned stars to purchase various upgrades. If you let enemy jet to go through, or if you get shot down a number of stars will be deducted. If the number falls too far below zero it will be game over. Good luck!