In the start of the level, Mario sees two Brick Blocks and, after going up on an elevated floor, faces a Dry Bones. Near this place, he must go up on moving sinking platforms and under a swinging spiked cylinder and a Baddie Box. A cement area is found soon after this, where Mario encounters Brick Blocks, a Draglet, and three Thwomps. Going to the far right, Mario must ride wire moving rotating platforms, under another Baddie Box and a Red Ring. Jumping to a stone area, he sees three Lava Bubbles, a Checkpoint Flag, and a pair of binoculars. On the left side, there are more moving platforms and Thwomps. Soon after, a stationary ground with another Draglet and a Hammer Bro is there. After Mario crosses rising boards and Lava Bubbles, the Tail Bowser battle starts. The corridor is composed of moving platforms, a cement floor, and a bridge. After Mario hits the Bowser Switch, he saves the two Toads (Green and Yellow), and the Tail Bowser is revealed to be a Magikoopa. Mario must enter a Warp Box to reach the top of a tower, where a + Clock and the Goal Pole are standing.