World 2 (New Super Mario Bros. Wii)

World 2 is the second world in New Super Mario Bros. Wii. The levels are all desert themed. There are eight levels in this world, two of them being castle levels that are guarded by Roy Koopa. Various Mushroom Houses are also found around here, giving the player items such as Stars, Mushrooms, and Propeller Mushrooms. On the map, there is an area where Mario and the gang can get sucked into the sand and play in a level where they have to collect all the Toad Balloons without dying known as the Enemy Course.

New Enemies

 * Boomerang Bros.
 * Pokeys
 * Lakitus
 * Spinies
 * Big Piranha Plants
 * Big Fire Piranha Plants
 * Fire Chomps
 * Spike Tops
 * Fire Snakes
 * Fire Bros.
 * Spikes
 * Lava Bubbles
 * Roy Koopa (Boss)

Trivia

 * This is the only even-numbered world in New Super Mario Bros. Wii not to have an Airship level.