World 1 (New Super Mario Bros. Wii)

Mushroom Plains is the first world in New Super Mario Bros. Wii. It has six levels, an Goomba to encounter just like in New Super Mario Bros. this world take place around Princess Peach's Castle. Larry Koopa is the first boss to be fought in the game. This level is similar to the first world in othergames, in that it has grassy plains and features many differing environments.

1-1
The first level of the game is a generic grassland level.

1-2
This level takes place in underground.

World 1-Castle
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