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

The third Ghost House in the game. Common Ghost House enemies can be found, including Boos. More of a maze than a typical ghost house, this house has a multitude of doors in each room, not to mention several dead ends. Since most of the doors are either fake or go in circles, there is only one successful path. To add to the difficulty, it is a very dark level. There is a secret exit in this level that will take Mario and company to the World 5 cannon. This cannon shoots Mario and co. to World 8.