World 2-3 (New Super Mario Bros. 2)
From the Super Mario Wiki, the Mario encyclopedia
The level starts in a desert setting with a Pokey and a yellow Warp Pipe that takes Mario to an underground section with floating and rotating platforms, along with several more Pokeys. Past this section is the Checkpoint Flag, a Roulette Block, two Coin Roulette Blocks (each with two Spike Tops), and a springboard used to bounce to the higher block. After the checkpoint are two platforms, a Pokey and a yellow Warp Pipe that warps Mario to the next area.
This second area contains Brick Blocks, ? Blocks and red POW Blocks, followed by platforms that go in opposite directions (two sets move downwards and one set moves upwards), with two Pokeys and a Red Ring. After passing a few more Buzzy Beetles and crossing quicksand, a green pipe blasts Mario out of the cave. Back on the surface, there are several stone platforms with Pokeys floating over a pool of quicksand. Crossing it leads to the Goal Pole.