World 3 (New Super Mario Bros. Wii)

World 3 (also known as the Frozen World ) is the third world in New Super Mario Bros. Wii. This world is ice-themed and introduces the Penguin Suit. This is also the first and only world in the game that has a switch which can change the obstacles slightly in levels, similar to the Switch Palaces from Super Mario World. It is also the only world in the game with 2 parts. On the map is an area with ice that has 2 Ice Bros. on it. If Mario and co. are hit by them, they will endure a battle game where they will have to complete the Enemy Course. Lemmy Koopa is the boss of this world. It has 8 levels and a total of 11 exits.

New enemies

 * Cooligans
 * Bullet Bills
 * Bill Blasters
 * Boos
 * Big Boos
 * Amps
 * Ice Bros.
 * Bob-ombs
 * Ghost Vases
 * Spiked balls
 * Ball 'N' Chains
 * Lemmy Koopa (Boss)