=======MOVEMENT======= Move around - Arrow keys (left and right) That's it. Avoid the red aliens and the meteorites. If you collect a red alien (which will take away all of your aliens which were in your UFO), it will play a BOOM noise so you are alerted immediately. The menu will let you choose which difficulty you want. Easy - Just aliens Medium - Aliens and meteorites Hard - Aliens, meteorites, and evil aliens