The object of the game is to be the first player to fly their four UFO's back from outer space and land them on Planet Earth. On your turn you cover your eyes with the mask provided while another player moves the large UFO round the board. As it moves it "beeps" and you need to identify where it landed. If you guess right then you can move your UFOs and "ZAP" another player back to outer space. If you get it wrong then the other players get a free move. Not quite as easy as it sounds (especially if your hearing isn't that good) and you can also "freeze other ufo's by landing on them.