World 6 is the 6th world in New Super Mario Bros. Wii. It is a mountainous place. Many Bullet Bills appear in this world. World 6 is a sunny level, but not as bright as World 4 (NSMB Wii) or World 1 (NSMB Wii) because it is in the mountains. Morton Koopa Jr. is fought twice here. There are 7 levels here plus 3 Mushroom Houses, the Enemy Course and the Ship. World 6-5 is an underwater level. It features Porcu-Puffers. World 6-6 is a dark cavern. You must ride on the boat with a light while avoidi
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