This is a second Mothership from 1984, the other one being by Artic Software, and being a bit better. Here we're experiencing a new way to invade the earth: an intergalactic purple barbecue is dropping h's on the ground, and you, last humankind's resource, a green hot pad, are trying to stop them, catch'em as they fall. If you don't, they pile up, and when they reach your heigth, you're over. Splendid.
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