World 3-Ghost House (New Super Mario Bros. Wii)
World 3-Ghost House is the Ghost House level of the third world in New Super Mario Bros. Wii. This is the first Ghost House in the game. Big Boos, smaller Boos, and possessed furniture are the main obstacles in this level. There is a platform that goes down in an area infested with Boos near the end of the level.
At first, when the level starts, a door can be seen, and if Mario tries to enter, Boos will laugh at the player and the door disappears, leaving a coin behind. Behind Mario is a wall with a hidden area with the first Star Coin inside. The player should go up the staircase while dodging some ghost vases and confronting two Boos. At the end of the path is another fake door, but there is a hidden area in the wall containing the actual door leading to the next room. Once there, players will have to climb up poles while still dodging some other Boos, and at the end of the area is another Star Coin hidden below the door. The next chamber is similar to the first one, except that the hidden area behind the wall contains a coin block instead of a Star Coin, and a rope is extended on the ceiling. Mario should grab it and then fall onto on of the moving platforms leading to the exit, but if they want to go to the secret exit, they must fall of on of them to access a room filled with Boos, Big Boos, a sinking platform and a Super Star. This room also contains the last Star Coin which is once again in a hidden area. At both the normal and secret exit, the player has to do is avoid the Boo and get to the Flagpole.
Upon seeing the first yellow moving platform in the third room where the player is climbing ropes on the ceiling (pictured), they should stop and wait until it moves away. The player should then fall, landing on a hidden platform with a door. When they go into this, they will discover a platform slowly descending, with countless Boos floating around. If the player survives, a door is seen. This exit unlocks the World 3-Cannon, taking the player to World 6.