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World 6 is the sixth world of Super Mario 3D World. It is a group of clouds floating near the World 5 and World 1 from the same game. ? Blocks and Coins are scattered throughout the map. It contains five standard courses, an Enemy Blockade, a Toad House, a Slot Machine, a Captain Toad course, and a Castle. After completing the castle, the Cyan Sprixie Princess will create a Clear Pipe to World Castle.
Levels
| Level Number | Level Name | Preview | Description | Stamp |
|---|---|---|---|---|
| World 1-1 | Super Bell Hill | File:Mega Mario and Co. Screenshot - Super Mario 3D World.png | An outside course with wooden white bridges. | Cat Mario |
| World 1-2 | Koopa Troopa Cave | 
|
An underground course containing Koopa Troopas. | Gold Coin |
| World 1-A | Chargin' Chuck Blockade | 
|
An Enemy Blockade with two Chargin' Chucks. | N/A |
| World 1-3 | Mount Beanpole | File:WiiU SM3DW 10.01.13 Scrn10.png | A course with colored blocks and Bell Trees. | Cat Goomba |
| World 1-4 | Plessie's Plunging Falls | File:WiiU SuperMario scrn04 E3.png | The first course with Plessie. | Plessie |
| World 1-5 | Switch Scramble Circus | File:WiiU SM3DW 10.15.13 Scrn27.png | A festival tent course with Flipswitches. | Super Bell |
World 1- Castle
|
Bowser's Highway Showdown | File:WiiU SM3DW 10.01.13 Scrn05.png | The first Castle course, with Bowser in his car. It requires 10 Green Stars to unlock, and must be unlocked to progress. | Bowser |
| World 1-Toad | Captain Toad Goes Forth | File:SM3DWtower.png | The first Captain Toad course. | N/A |
