About Game

HOW TO PLAY: <ul><li>Destroy all UFOs by adjusting ANGLE and DISTANCE on the radar system.</li><li>You can adjust ANGLE and DISTANCE by clicking theandbutton, or just adjust them by dragging the indicator.</li><li>Save ENERGY  as much as you can, longer distance costs more ENERGY.</li></ul> GAME LOSE: <ul><li>If UFO escaped.</li><li>If UFO occupied the laucher.</li><li>Run out of ENERGY.</li></ul> GAME WIN: <ul><li>Destroy all 10 UFOs.</li></ul>