World 4-Tower (New Super Mario Bros. Wii)
This tower begins with Conveyor Belts that causes four Iron Blocks to fall, allowing the player to progress. A Dry Bones and a ? Block are found on the right side of the area. A Warp Pipe is at the top of the area, with two Dry Bones with ? Blocks on either side. The next area contains a pipe that creates Iron Blocks, which are used to reach the platform above. More Conveyor Belts follow, with a large group of coins above one. The midway point follows some Conveyor Belts. Following this is a Red Ring, as well as Propeller Blocks and lifts that allow the player to reach the top of the area. Dry Bones are found on platforms next to the walls.
The next area contains Conveyor Belts, as well as more Iron Blocks that act as obstacles as the player climbs the area. At the top of the area, the pipe that creates the Iron Blocks is found, along with a Warp Pipe. There is a hidden section behind a wall to the left of the area containing a 1-Up Mushroom, which can only be accessed by Mini Mario. Through the Warp Pipe, Conveyor Belts drop a large amount of Iron Blocks, which act as platforms to reach the top of the area. The boss door is found at the top, with coins and a Hidden Block containing a Fire Flower in the wall to the left.
Wendy O. Koopa is fought here, at the end. Wendy attacks Mario by shooting rings that bounce off the walls (they eventually dissolve) out of her wand and jumping. She spins around in her shell attempting to hit the player when hit. After being hit the third time, Wendy is defeated.