World 5-Ghost House (New Super Mario Bros.)

 is the Ghost House of World 5. It is accessed upon completing World 5-3, and its own completion unlocks World 5-4 (normal exit), and World 5's Warp Cannon and World 8 (secret exit).

Layout
This Ghost House has Broozers that can harm Luigi, but can also be used to his advantage. To get the first Star Coin, Luigi needs to let a Broozer break some blocks under him, so that he can Wall Jump to the coin. Next, Luigi needs to run and jump to a door in the corner of a room. He should quickly Wall Jump to get the second Star Coin (the third Star Coin is in the secret exit). Then, the player should keep going up to find a platform that carries Luigi up. It will then stop, wiggle around, fall down, and lastly, it will shoot up to the top. When Luigi leaves the platform and goes through the door, he will be at the flagpole.

Star Coins

 * Star Coin 1 - Luigi should have one of the Broozers break a set of blocks blocking the path to the first Star Coin, and then wall jump to collect it.
 * Star Coin 2 - When the player spots a door near the corner of the room, they need to jump to it. Inside the room, they must quickly wall jump to the coin before the six Broozers in the room destroy the blocks.
 * Star Coin 3 - This coin is in the secret exit. Luigi should reveal the invisible blocks aforementioned, and then he should reveal the Beanstalk. Luigi should avoid the Broozer and enter the door. Luigi should stay on the right side of the platform to get to the coin in an alcove.

Secret exit
On the floor above the door that leads to the second Star Coin, the player should see three blocks together. Luigi should get on top of them and jump on each one, revealing three invisible blocks. Next, Luigi should get on those blocks. He should go to the middle block, then he must jump (or duck and jump if he is Super Luigi's size), revealing another invisible block that contains a Beanstalk. He must climb it, avoid the Broozer, and go through the door. There is another platform there that the player must ride. At the end of the ride there is a door, and through the door is the Red Flagpole. The Secret Exit opens a path to a Warp Cannon that shoots Luigi to World 8.