Following the ruination of their own planet, the most evil, vile and slimiest aliens known to man have waged war on Planet Earth. Using your arsenal of plasma obliteration weapons, your mission of mercy will involve mass beast-busting and alien annihilation as the battle rages through city streets. Featuring 6 massive brain-busting levels, a ferociously addictive mixture of fast-scrolling fight scenes, and a huge army of gruesome, multiple character, metamorphic, man-eating monsters!