Marx

Marx is the main antagonist and final boss of Milky Way Wishes in Kirby Super Star and its remake, Kirby Super Star Ultra, and is the final boss of the games in general. He had originally appeared as a small jester, somewhat resembling Mirror Kirby, bouncing on a multicolored beach ball. He asks Kirby to help him end a war between the Sun and Moon. Kirby listens to his plea and does what he suggests, completely unaware of Marx's ulterior motives. The jester then turns up just in time to send the final part of his devious plan into motion and simultaneously reveals that he used Kirby the whole time in order to gain control over Planet Popstar.

Upon gaining power, Marx becomes a strong, bat-like entity with flashing, multicolored "scales" on his recently-acquired wings, as well as endless power. Upon Marx's defeat, he flies out of control and crashes into the broken head of the Galactic Nova, causing the great machine to blow up in the process. Despite being seemingly destroyed in his first appearances, he manages to make frequent cameos later in the series.