World 7-3 (New Super Mario Bros. Wii)
From the Super Mario Wiki
World 7-3 is the third level of World 7 in the game New Super Mario Bros. Wii. There are Fuzzies and Big Fuzzies on this level that move on rails. There are also a lot of platforms that move on rails.
Mario starts the level near a track with a Fuzzy, a Brick Block, and a ? Block containing a Propeller Mushroom. A Mushroom Platform with more Brick Blocks and ? Blocks is found, followed by track with a ? Block and two Fuzzies on it. After another track, Mario must ride a lift across a track. Several Fuzzies fall onto the track, and they must be jumped over. The midway point is then found, along with a Mushroom Platform with two ? Blocks above it, one of which containing a Propeller Mushroom. Two more groups of Fuzzies on tracks are found, along with a track with Fuzzies, Brick Blocks, and ? Blocks on it. A P Switch is found on a Mushroom Platform, and causes Blue Coins to appear when pressed. Mario must then ride across more lifts, avoiding Fuzzies and Big Fuzzies. A Roulette Block can be found above a Mushroom Platform. At the end of the track, the flagpole is found.