Use the arrow keys to move your alien-fighting agent and the space bar to shoot his laser. Aliens will be beamed down (look for the glow of the beaming light from their ship) and try to attack you. The laser sends aliens back to their planet - get rid of them all by the end of the night! Lives are recorded on the top right corner, score is in the middle, and level is on the top left. There are 4 levels to beat. Can you survive the night and save Earth?
