Meringue Clouds

Meringue Clouds is the sky world of New Super Mario Bros. U. It is east of Acorn Plains, Layer-Cake Desert, Sparkling Waters, and Frosted Glacier, northeast of Soda Jungle, northwest of Rock-Candy Mines, and south of Peach's Castle. The world can be either accessed by completing Roy's Conveyor Castle or completing Flight of the Para-Beetles, Soda Jungle's secret level.

It is a sky world similar to World 7 from New Super Mario Bros. Wii and World 5 from New Super Mario Bros. 2, but unlike those two worlds, there are two levels taking place at sunset and the Castle taking place near the tornado surrounding Peach's Castle, which is marked off by different cloud colouration. It seems to take over a cliff next to World 1, the grass-themed world from the previous New Super Mario Bros. games, in between Rock-Candy Mines and Peach's Castle. Its name is derived from a French dessert made from whipped egg whites and sugar. There are 10 levels in this world, with 6 normal levels, one being is the third Ghost House in the game, the Tower level, the Castle level and the Airship level. The boss of this world is Ludwig von Koopa.

Levels

 * Meringue Clouds-1 : Land of the Flying Blocks: A level with moving clouds and blocks.
 * Meringue Clouds-2 : Seesaw Shrooms: The second of level of Meringue Clouds.
 * Meringue Clouds-3 : Switchback Hill: The third level.
 * : Slide Lift Tower: The Meringue Clouds tower, which has Dry Bones, Firebars, and a lot of Fire Bros., with Kamek as the boss.
 * : Spinning Spirit House: The Meringue Clouds Ghost House.
 * Meringue Clouds-4 : Bouncy Cloud Boomerangs: The fourth level. As its name suggests, there are clouds that can be used as trampolines, and Boomerang Bros. feature here.
 * Meringue Clouds-5 : A Quick Dip in the Sky: The fifth level.
 * Meringue Clouds-6 : Snaking above Mist Valley: The sixth level.
 * : Ludwig's Clockwork Castle: The Meringue Clouds castle with Ludwig as the boss.
 * : Boarding the Airship: The second airship with Bowser Jr. as the boss.