A dimensional rift lets in an alien being with definite hostilities. Goon has to give it a severe beating, but before it expires, it swallows a Mexican horned toad from a pet stand, and metamorphoses into...iLargarto Hombre! A colossal, city-wrecking lizard. Dr. Alloy is on hand with a remedy, a dart gun that delivers to Goon's butt a dose of a drug that temporary transforms Goon into a gargantuan ape. The fight is on!