World 3-Tower (New Super Mario Bros. Wii)
From the Super Mario Wiki
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This level features brightly colored rotating blocks that must be used to climb to higher locations. Rolling Spiked Balls, Dry Bones, and Amps are some of the hazards that must be avoided as the floor scrolls upward. Near Lemmy's door, there is a squared-shaped area with a Hidden Block containing a Penguin Suit in the center of it. The last half of this level resembles Castle Crush, a level found in Donkey Kong Country 2: Diddy's Kong Quest. At the end of the tower, Lemmy Koopa is found balancing on a yellow ball in an icy arena. The player must attempt to defeat him while avoiding the yellow balls that Lemmy conjures otherwise they have the risk of being pushed off the level. Lemmy also spins in his shell trying to hit the player when hit. Like most other bosses, Lemmy must be hit three times to be defeated.