CrossEyed's definitions are correct and are normally applied to professional wrestling. As for Marx, he did a Face Heel Turn:
"He originally appeared as a small jester, balancing on a multicolored ball who asks Kirby into helping him end a quarrel between the sun and moon. When Kirby listens to his plea and does as he says, he turns up just in time to initiate the final part of his devious plan, and reveals that he manipulated Kirby to gain power."
Sort of like Sirius in Bomberman.