Frosted Glacier

Frosted Glacier is the third world in New Super Mario Bros. U. Frosted Glacier is a snowy and cold world and takes place at night. The boss of this world is Wendy O. Koopa. The Bubble Baby Yoshi is making an appearance in the first level of this world. It is possible that the Ice Bro's are appearing in the Enemy Course like New Super Mario Bros. Wii in World 3. There are also Toad Houses appearing in this world.

Trivia

 * The trees on the map are changed from the ones in New Super Mario Bros. Wii: the trees of World 3 in New Super Mario Bros. Wii are broader. The trees are also dark green while in World 3 of New Super Mario Bros. Wii the trees are blue, green or purple.
 * There is also a pipe at the beginning, and it could possibly to be an alternate way, similar to World 2 in New Super Mario Bros. Wii and World 6 in New Super Mario Bros. Wii, where there is an alternate way to the Castle.