First appearance: Godzilla vs. Megalon (1973)
Megalon's list of abilities is certainly among the most impressive. This massive bug-like villain shoots lightning bolts from his horn and napalm balls from his mouth. Anyone with napalm balls is not to be trifled with, you would think. He can burrow underground at Mach 2 and swim at Mach 4, and can jump 10 kilometers at a time. Too bad he's kinda dumb. He likes to put his head down and charge, which fails when his targets simply step aside. He is also easily distracted. But still, you have to love the smell of his napalm balls in the morning. Wait, that doesn't sound right.