Shifty Boo Mansion

Shifty Boo Mansion, otherwise known as World 3-3, is the third course of World 3 in Super Mario 3D World. It is unlocked via completion of Snowball Park, and its own completion unlocks Pretty Plaza Panic.

Layout
This level is the first haunted house level in the game. Hence its name, the mansion is inhabited by Boos. The level features a painting that the player can enter, which is very similar to the paintings in Super Mario 64. After a long hallway is a library with bookshelves that shift when touched. Later, there are staircases that act like elevators.

Green Stars

 * Green Star 1: Near the beginning, the player must jump into the Boo portrait to enter a rotating room with Peepas and the green star.
 * Green Star 2: In the library, the player has to move around the bookshelves on the very left to unveil the second green star.
 * Green Star 3: Near the end, the player must stand on the couch at the end of the hallway to take them to the third green star, which is hidden inside a fake Warp Pipe.

Stamp

 * Immediately after the first green star, the player has to stand on the couch that levitates to the stamp.

Enemies

 * Boos
 * Big Boos
 * Peepas