World 2-2 (New Super Mario Bros. Wii)
World 2-2 is the second level of World 2 in New Super Mario Bros. Wii; however, the player has the option to play either World 2-1 or this level to advance. Like 2-1, it is a desert-themed level, which introduces Spikes and barrels. Completing this unlocks World 2-3.
The level starts with Mario standing next to a pair of barrels. As the player moves on, there is a hill with several Goombas approaching; on the upper platform floating in the air are three more barrels, and the next section has a Spike. The next section down a hill has a Spike standing on several Brick Blocks. Before the Spike and adjacent to the ? Block on the second platform, there is a Brick Block containing a P Switch. The next area has several Brick Blocks floating over a pit of quicksand and a Spike on a midair platform. Up the next hill, there are two Spinies, and down the opposite side, there is a Koopa Troopa and three Goombas. Following this is a vertically moving platform with nine red Koopa Troopas on ledges that can be used to get a 1-Up Mushroom, and the midway point is after this. However, the adjacent quicksand pit leads to a secret area with a P Switch that spawns a large group of Blue Coins, as well as another secret that leads to a Star Coin.
The section following the midway point has a trio of Goombas. On two midair platforms, there are barrels, with a Spike nearby. Next, there is a vertically moving platform; on the left side of it is a pair of platforms with a barrel on one of them, and the right side has a row of Brick Blocks and a Spike. The first Brick Block contains a Beanstalk leading to a bonus area. The next area consists of several vertical platforms with a Spike on the opposite end of each. The next section has two vertically scrolling platforms, one with a Spike on it. On the left side of the free platform, there is a Warp Pipe leading to a bonus underground area with a Mini Mushroom and a P Switch. After another desert platform, there are several horizontally scrolling platforms and a Spike guarding the next section. Underneath this next section, there is a mini Warp Pipe leading to another underground bonus section with a P Switch and a Star Coin. Following this is a horizontally moving platform, another Spike, and the flagpole.