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World 1
Game Another Super Mario Bros. Wii
World number 1
Levels 8
Bosses Larry Koopa
Game Progression
Previous world None
Next world (2) World 2
(5) World 5 (secret)

World 1 is the first world in Another Super Mario Bros. Wii. It is a grassy plain in front of Princess Peach's castle.

Its tower and castle boss is Larry Koopa.


World 1 is a green grassy plain in front of Princess Peach's castle with several multi-colored hills in the back. Flowers and bushes are scattered across the land, and bright blue water flows below. Goombas and Koopa Troopas are common enemies to be found.

World 1 is automatically accessible upon creating a new save file. Completion of World 1-Castlensmbw2.png grants access to World 2-1 and World 2-2 in World 2. Completion of World 1-3's secret exit grants access to World 1-Cannon2.png, leading to World 5-1 in World 5.


Level number Preview Description
World 1-1 World 1-1A.png A little area outside Princess Peach's castle where multiple Goombas and Cheep Cheeps stay.
World 1-2 World 1-2A.png A dark blue cave filled with rolling hills, Piranha Plants, and Crystal Blocks.
World 1-3 World 1-3A.png A nice Yoshi-themed plain.
World 1-Fortress.png World 1-TowerA.png A dark green tower fortified with Moving Stone Block and Dry Bones. Larry Koopa is firstly fought here.
World 1-4 World 1-4A.png An underwater level where Cheep Cheeps are the main obstacle.
World 1-5 World 1-5A.png A place high in the plain-themed sky where Fuzzies and Mushroom Blocks will try to stop the player.
World 1-6 World 1-6A.png Another plain-themed level with many Goombas and Rolling Hills.
World 1-Castlensmbw2.png World 1-CastleA.png A lava-filled castle contrasting with the peaceful plains. Larry Koopa is lastly fought here.

Other Buildings

Level number Preview Description
World 1-Peachscastle.png Peach'scastle.png Princess Peach's very own castle. A secret can be found to those who have activated the Red Switch...
World 1-Cannon2.png World 1-CannonA.png The Warp Cannon of World 1 which leads to World 5. It is accessible after completing World 1-3's secret exit.