World 4 (New Super Mario Bros. Wii)

Sparkle Ocean, or World 4 (NSMBW) is the name of the fourth world of New Super Mario Bros. Wii. If is on several tropical islands therefore, most of it's levels are water themed and have a rather good use on the Penguin Suit, which can glide over water and allow Mario to swim better. Also, on the map is a bridge surrounded by a giant Cheep-Cheep that can jump up and make Mario and the gang endure an Enemy Course. This is also the first world to have a level on an Airship, like there was in Super Mario Bros. 3.

4-1 (To the Sea or to the sky)
This level has two choices right from the start- sky or sea you can totally stay out of the water or totally be in the water. This level has Urchins, Mega Urchins, Cheep-Cheeps, Spiky Cheep-Cheeps, and more!

4-2 (Donut Block Boardwalk)
A lot of this course is filled with Donut Blocks and Cheep Cheeps. A decent number of Cheep Cheeps may also jump up to attack the player.

4-3 (Huckit Hideout)
This level introduces Huckit Crabs.

4-Fortress (Wendy's Tower)
This tower features a lot of conveyor belts that were seen back in Super Mario Bros. 3. Metallic blocks are also a common sight here; some are needed to advance, while others are more of a nuisance. If the player isn't careful, he/she may get crushed by the blocks.

Wendy O. Koopa is fought here in the end.

4-4 (Water Walk)
This level starts out overwater, but the player will eventually go underwater. The underwater area is infested with Bloopers.

4-Castle (Wendy's Castle)
This course features the crawlable fences, along with some Koopa Troopas that are on the fences as well. The player can also change which side of the fences he/she can hang on from.

Additionally, the spiked pillars that appeared in Wendy's Castle and the Valley Fortress back in Super Mario World make an appearance here. However, they're all horizontal instead of vertical.

Fishbones make their first appearance in this game here.

The player faces Wendy O. Koopa for a second time here. However, at times the water level will rise, which can make it harder for the player to stomp on her head.

4-Ship (Bowser Jr's First Airship)
This is the first airship level in the game. The level is infested with Mecha-Koopas other dangers are torches, screws, and pipes that spew Bob-ombs. The boss of the airship is Bowser Jr. in a Koopa Klown Car.

Enemies Introduced

 * Mega Urchins
 * Porcu-Puffers
 * Huckit Crabs
 * Bloopers
 * Baby Bloopers
 * Blooper Nannies
 * Cheep Chomps
 * Little Mousers
 * Flying Ghost Vases
 * Fishbones
 * Mecha Koopas
 * Rocket Engines