Zorn is a mentally deranged Goomba with psychic powers, such as leviation, reading minds and pyrokinesis. Zorn is generally invurnerable; his only weakness is The Sculpture of Light, a rod with a lightbulb on it's end. Zorn makes Megasparkle Goomba steal the Sticker Crown. He then hides in the shadows and is ultimately fought twice.
Zorn walks around, rolling when attacked by any means but jumping. When jumped on, Zorn is flattened and has to be stomped continously (by not moving once jumping on him) until he regrows, sidesteps and throws a fire bomb on the ground, causing blue fire to spread over the arena, destroying tiles of the floor. After being stomped on a total of 90 times, Zorn is knocked over and rolls away.
This fight has two phases:
(1): Zorn uses his tactics from the first fight. Once jumped on, he topples over, allowing the player to jump on his legs once. Hitting him 6x makes him retreat to the arena's other side, then he tries to ram in the player's character and run over him (which will OHKO). Jumping on Zorn again causes him to get flung upside-down, his legs must then be stomped one more time.
(2): Zorn grows wings, a tanooki tail and a leaf on it's head, like a Paragoomba and a Tanoomba combined. He flies around, spins with his tail and wings and then flies to the ceiling, preventing him from being hit. Glass cult will drop down, then Zorn leaps down, then back up (like Super Mecha Sonic from S3&K). If he's stomped on, he will roll over the ground, then try to jump and land on the Player. If he misses, he becomes dizzy and destroys tiles of the floor, then open several wormholes where he travels trough, attempting to ram into the Player. The process then repeats like how the 2nd phase started. After being hit 3 more times, he glides down with his Tanooki Tail, spins it and flies up. Stomping him again causes him to land in a Goomba Shoe, then jumps around the stage trying to flatten the Player. Stomping him again will turn him into a Cat Goomba, where he will do everything the Player can do as Cat Mario in SM3DW. A POW Block then spawns. Throwing it twice causes Zorn to lose the Cat power-up and fall to the ground, lying on his back. Throwing the block 6 more times makes Zorn, still lying on the floor, expose his weak spot. The Player must then grab the falling Sculpture of Light and shine it on Zorn until he fades away. After this, the game is beaten.