World Coin-4 (New Super Mario Bros. Wii)
From the Super Mario Wiki, the Mario encyclopedia
This is a desert-based level that takes place underground. The whole level is completed using a moving platform. There are many Sand Geysers that the player can jump on. The primary enemies are Koopa Troopas and Koopa Paratroopas. Propeller Mushrooms are the power-up encountered here.