World 7 (New Super Mario Bros.)

World 7 is the seventh world in New Super Mario Bros.. It is a cloud-themed world. This area is accessed by using the cannon from World 4, or by defeating Petey Piranha, the boss of World 5, as Mini Mario or Mini Luigi.
The boss of this world is Lakithunder, who can be defeated by Mario/Luigi jumping on his head three times.
== Levels ==
* World 7-1
* World 7-Ghost House
* World 7-2
* World 7-3
* World 7-Fortress
* World 7-4
* World 7-5
* World 7-6
* World 7-7
* World 7-A
* World 7-Castle
This world features 5 Mushroom Houses.
== Secret Exits ==
There are thirteen secret exits. 
== Walkthrough ==
left|thumb|400x400px|by [https://www.youtube.com/channel/UCg_j7kndWLFZEg4yCqUWPCA packattack04082]
fr:Monde 7 (New Super Mario Bros.)
de:Welt 7 (New Super Mario Bros.)
Category:Sky-themed
Category:Worlds in New Super Mario Bros.