World 6-2 (New Super Mario Bros. Wii)

This is an underground level, with many rotating circular platforms, much like the ones in World 1. The main enemies in this level are Spinies and Swoopers. There are also some Super Piranha Plants and at the end of the cave, there are two Sledge Bros. right before the Warp Pipe to exit the cave.

Enemies

 * Piranha Plants
 * Super Piranha Plants
 * Goombas
 * Spinies
 * Swoopers
 * Sledge Bros.