World 2 is the second world in New Super Mario Bros. Wii. This world takes place in a desert. There are eight levels in this world, two of them being castle levels that are guarded by Roy Koopa. It also has a total of ten exits. Various Toad Houses
Yoshi - Super Mario Wiki, the Mario encyclopedia
World 2 (Another Super Mario Bros. Wii), Newer Super Mario Bros. Wiki
New Super Mario Bros. Wii - Super Mario Wiki, the Mario encyclopedia
Super Mario Bros. Wonder - Super Mario Wiki, the Mario encyclopedia
Super Mario Wiki (@SMWikiOfficial) / X
Baby Mario - Super Mario Wiki, the Mario encyclopedia
World 1-Tower (New Super Mario Bros. Wii) - Super Mario Wiki, the Mario encyclopedia
Koopalings - Super Mario Wiki, the Mario encyclopedia
Baby Yoshi - Super Mario Wiki, the Mario encyclopedia
World 7-2 (New Super Mario Bros. Wii) - Super Mario Wiki, the Mario encyclopedia
Walkthrough - New Super Mario Wii Guide - IGN
List of New Super Mario Bros. Wii trading cards - Super Mario Wiki, the Mario encyclopedia