Squirmathon

Squirmathon is a troll level by King Spork. It used many properties of Wigglers, and it started killing the player using Wigglers instead of Monty Moles. CarlSagan42 explained in his playthrough of this level that even troll levels should have hints.

Walkthrough
The level starts with a Wiggler bouncing perfectly around Mario, and Mario needs to time his way out. Leaving that means Wigglers will drop everywhere. However, due to their wings, it is possible to simply run past them. After that, it is necessary to hit some hidden blocks containing Wigglers, and use the Wigglers to gain height. A door can be entered that leads to a semi-hyper speed launcher pushing the player to the right, when their goal is to go to the left, as to the right is a wall of spikes. A crouch jump can be done to get over the top Wiggler, and go through a pipe to CP1.

The next section also starts with raining Wigglers, and this time there is also a launcher hidden behind a Wiggler that shoots more Wigglers. After that, there is a ride on the Wiggler Express, except the Wiggler turns around behind one of the saws it passes through, so the gap needs to be cleared by staying on that Wiggler until another Wiggler comes on the other piece of the track, and it can be used as a bouncing platform. Once that is done, the player needs to be quick to enter a door to avoid the floor being covered in Wigglers. Through the door, there is a Wiggler Booty to the face, and a tower of Wigglers that can be removed with a P Switch. That P Switch is found in a nearby hidden block up to a wall, though the blocks below the Wigglers do not actually transform, and instead the Wigglers jump at the player. They can easily be dodged by a suspecting player, and the exit door can be reached once the P Switch timer expires, though when that happens a ton of Wigglers will fall with only one safe spot. Hidden blocks can also be hit to create more safe spots. Through the door, the same thing happens on a bigger Wiggler Express, though there are no hidden blocks. However, a shell kills the Wiggler Express mid-journey, so the player needs to jump off and reach the next platform. Then, some Bob-ombs can be used to break some blocks, and when the room is reloaded, Wigglers will hold the launchers above them, allowing Mario to pass. To the left of the next room, there is a pipe with CP2 in it.

The only thing in the CP2 room is to go back through the pipe, and there is a door on the other side of the room that the player was in before, with a boss fight against Bowser Jr. Meanwhile, a ton of Bob-ombs get shot at Mario, which need to be kicked at Bowser Jr. Eventually, a Star is released, which can be used to plow through Bowser Jr., and reach the pipe behind him. There are a ton of Wigglers in that room that can be ran through, as well as a hidden block climb where each block releases a winged Wiggler. At the top, there is a door which leads to the end, but carelessness leads to Wigglers hitting Mario.