World 7-1 (New Super Mario Bros. Wii)
From the Super Mario Wiki
World 7-1 is the first level of World 7 in New Super Mario Bros. Wii. It features different colored spinning blocks which move at different speeds. Also, colorful moving pipes are scattered around, along with a lot of Piranha Plants.
The level begins in an area with platforms leading up to a Warp Pipe. The Warp Pipe leads into an area in the sky, where a ? Block containing a coin is found above colorful moving platforms. Two Koopa Troopas are found on a yellow platform, along with a ? Block contains a power-up. A Piranha Plant is found on a red platform, followed by some platforms made from Warp Pipes. Some more Piranha Plants are also found. After the pipes, thin moving platforms are found, followed by some spinning platforms. Some Piranha Plants are encountered, followed by another Warp Pipe platform and the midway point. More moving platforms and Warp Pipes are found, along with some more Koopa Troopas and Piranha Plants. After some moving platforms at the end of the area, a Warp Pipe is found, leading the player to the next area. There are several tall platforms, along with the flagpole.