Nuclear Heist
Earth has been reduced to a barren wasteland, and humans now live in underground cities that are powered by uranium. However, aliens from the planet Taroid have learnt about this and have come to invade Earth in order to steal the uranium. This game is a very simple shoot-'em-up where the aliens move from right to left across the screen, and you must shoot them with your helicopter before any of them reach the left of the screen and hit the barrier. Shoot enough aliens and you enter hyperwarp, where you must dodge the flying debris for a short while. The graphics and sound are very rudimentary indeed, and after a few goes, you'll want to play something else.
http://everygamegoing.com/landing/items/amstrad/powerhouse/tapes/Freedom_Fighter.html
