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

 is the Ghost House of World 4 in New Super Mario Bros. Wii.

Layout
In this level, at the start, the floor moves up or down when the player stands on it (right at the beginning there is a Starman too). Enemies found here include Boos and Scaredy Rats. The player must then hit a P-Switch on the ceiling in a hidden alcove which requires standing on the floor which moves up. This enables access to the door leading to the next area. Through this door is a long area of stairways going up and done, where many clusters of Scaredy Rats run along. Past the area is the flagpole.

Star Coins

 * Star Coin 1: The coin is hidden in the sixth platform in the first room. Stand on the platform to reveal the Star Coin.
 * Star Coin 2: This coin is only accessible via the normal exit. Don't go through the door leading to the flagpole, instead go past it. Walk through the wall to reveal a hidden alcove containing the Star Coin.
 * Star Coin 3: This Star Coin is only accessible via this exit. In the second area, the Star Coin can be seen near the ceiling. Stand on the platform just below it to reach it.

Secret Exit

 * Before the door to the second area, there is a ? Block containing a coin. Stand on the platform below it to reveal a hidden door. Go to the door to the next area and continue to the flagpole. This exit unlocks World 4-Castle and a yellow Toad House.

Enemies

 * Boos
 * Big Boos
 * Ghost Vases
 * Scaredy Rats