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The course stretches over several conveyors and Red Girder Rivets, and two Thwomps are present as well. The two Mini Toads start next to each other in a small room at the top left. Upon initiation, they will soon enter a Split Pipe that warps them in a section at the right, containing conveyors and many Ladders. Mini Mario directly faces a wide pit of spikes in the middle of the bottom floor, traversible with Red Girders. Past the pit is the section from earlier, where the Minis can group up and continue on together.
One of the Thwomps that reside in this level is located next to the Goal Door and very close to the ground, virtually blocking the passage to the door. The objective is to trigger the Thwomp to fall on the conveyor underneath and cause it to glide to the right, eventually rising to a recess in the ceiling, then block it there with a Red Girder. The other Thwomp can similarly be brought with a conveyor into the same recess, although this is not necessary to gain direct access to the door.
The M Coin is located on the far right side of the course, separated by a conveyor which has to be adjusted to lead to the coin. To collect it, the Minis should descend the top Ladder and fall onto the conveyor.