In this game you are in a space station and are responsible for controlling a shield to block debris coming from space. Use the mouse to control the shield to block the debris. Note that the shield has limited move speed, so you need to move carefully and efficiently in order to block all the debris. If a piece of junk is coming too fast and too far away from your shield and the shield is not fast enough to block it, then you can press the left mouse button to speed up the shield. When you speed up the shield, energy will be used up, so speed up the shield only when necessary. Used energy will be replenished slowly. If you fail to block a piece of debris, the piece may hit you, causing you to lose a life. If you are hit too many times, you will lose and the game will be over. The less energy used and the more debris are blocked, the higher your score.