World 4-4 (New Super Mario Bros. Wii)

World 4-4 is the fourth level of World 4 in New Super Mario Bros. Wii.

Layout
This is an underwater level. It is infested with Bloopers, Blooper Nannies and pipes that blow bubbles. In one Bonus Area, one of only two Cheep Chomps in the game can be found.

Star Coin

 * Star Coin 1: After the checkpoint, look for a P-Switch on the ceiling and activate it. All pipes releasing a stream of bubbles will turn off and a trail of blue coins is seen. Follow the blue coins quickly to a yellow pipe before the time runs out, otherwise the pipe will begin blowing bubbles again. Through the pipe, obtain a Penguin Suit to freeze the Cheep-Cheep at the right time and use it as a platform to reach the Star Coin.
 * Star Coin 2: The coin is located between two green pipes at the bottom of the level, near a ? Block.
 * Star Coin 3: Just before the exit pipe is a "wall" that seems to block the player's way to the exit pipe and they must go above it instead. The "wall" is actually a hidden area containing the Star Coin.

Enemies

 * Cheep-Cheeps
 * Mega Cheep-Cheeps
 * Spiny Cheep-Cheeps
 * Bloopers
 * Blooper Babies
 * Blooper Nannies
 * Cheep-Chomps