In Alien Attack, you're the gunner for your planetary base, and you've come under attack! It's your job to destroy the aliens while you protect the ships escaping from the planet. The ships are heavily armored, so you don't have to worry about destroying them with your own gun. However, if you do fire on them, you'll lose a lot of points. The best strategy is to concentrate your fire low in the hills. Oh, and don't wait too long to blast the aliens because they do shoot back!
Controls: Mouse to aim and fire