Wizenheimer

"Because I'm an evil Koopa Wizard! I don't need a reason to be mean and nasty, it's my nature! Besides, I just love how you guys hang around. Huhahahaha!"

- Wizardheimer

Wizardheimer is a somewhat overweight Koopa Wizard with a booming voice. He was the main antagonist of the Super Mario World episode "Ghosts 'R' Us".

Mario, Luigi and Princess Toadstool first encounter Wizardheimer while searching the Enchanted Forest for Oogtar the Caveboy, who is missing. After bumping into Wizardheimer in the forest, the Koopa Wizard forces Mario, Luigi and Toadstool into a nearby Warp Tube, threatening to blow the trio up with a Bob-omb if they didn't obey.

This Warp Tube led to Wizardheimer's Haunted House, the basement of which he shackled Mario, Luigi and Princess Toadstool in.

Wizardheimer later captured Oogtar, who had attempted to break-into his Haunted House. Wizardheimer was later defeated when Yoshi, after facing his fears and venturing into Wizardheimer's Haunted House, eats the Koopa Wizard's wand.

After having his wand eaten, Wizardheimer was bonked on the head by the recently released Mario and fell unconscious into his basement.

Trivia

 * In a later episode of Super Mario World entitled "The Yoshi Shuffle", a Koopa Wizard with a voice similar to Wizardheimer appears, though whether or not this is Wizardheimer is unknown.
 * Not once in "Ghosts 'R' Us" do Mario, Luigi or any other character pronounce Wizardheimer's name right, constantly referring to him as "Wizenheimer", "Wizardwhatever", "Wizikre'", "Wisecracker", or "Wisenwhatever".