World 2 is the second world of the game New Super Mario Bros. Wii. It is desert-themed and consists of eight levels, of which two are castle levels guarded by Roy Koopa. This level is throttled with Mushroom Houses, assisting the player by forking over items such as Starman, Mushrooms and Propeller Mushrooms.
NOTE: italics are secret exits.
|2-1||World 2-3||This level takes place in the desert and is the first level with sand geysers.|
|2-2||World 2-3||This level is filled with barrels and Spikes. There are areas with platforms infested with Koopas and Spikes.|
|1-3||World 2-Fortress||This level is a pitch dark cave, which is dimly lit by lanterns. Fire Bros. Fire Snakes, Fire Piranha Plants and Spike Tops are common enemies in this level|
|2-Tower||World 2-4||This tower features metallic fences that the player can cling on.|
|2-4||World 2-5, World 2-6, World 2-Castle||Every few seconds, Wind blows in the level, forcing the player to the right.|
|2-5||Enemy Area, World 2-Castle||This level has many Pokeys as well as some Lakitus, and there's also a Yoshi in this level.|
|2-6||Enemy Area, World 2-Castle, World 2-Cannon||This is a mushroom level that mostly has moving coins and blocks.|
|2-Cannon||World 5-1||N/A||The Warp Cannon of World 2, leading directly to World 5.|
|2-Castle||World 3-1||This castle is filled with lava pits, and three-way corridors, of which only one is the correct path. The boss is Roy Koopa.|