World 7-1 (New Super Mario Bros. Wii)

 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.

Star Coins

 * Star Coin 1: Not too far before the Checkpoint Flag is an upside-down Red Pipe with a Piranha Plant (pictured) and the first Star Coin to its high left. To get it, Mario and co. must wall kick off the pipe.
 * Star Coin 2: Directly after the Checkpoint Flag is a Yellow Pipe between two Red ones; this Pipe leads to a hidden area with several spinning blocks, and the second Star Coin is all the way to the right. Mario and co. can get the Star Coin either by jumping to it from the right-most green spinning block, or by using a Propeller Mushroom.
 * Star Coin 3: The third Star Coin is high up and near the exit Pipe at the end of the level. Mario and co. must either use a Propeller Mushroom, or get on the right-most blue spinning block, wait for it to go all the way up to the left, then jump to the Star Coin from it.

Enemies

 * Koopa Troopas
 * Piranha Plants