Ro-Man

Ro-Man's History
Seeing Earth's space program as a threat to alien civilizations, the lunar Great One sent his deadly cyborg enforcer, the Ro-Man, to wipe out humanity. Armed with a death ray known as the Calcinator, Ro-Man was able to destroy all but eight humans before they found an antidote to the Calcinator. The Great One sent Ro-Man to finish the job himself, only for the cyborg to fall for an Earthwoman. Finally, the Great One decided destroy both Earth and his disloyal servant on his own.