Big Boo's Haunt is the fifth level in the Nintendo 64 and Nintendo DS games, Super Mario 64 and Super Mario 64 DS, respectively. To access this level, Mario must have 12 Power Stars (15 in the DS remake). He then has to punch the largest Boo in the courtyard of Princess Peach's Castle from behind. Afterwards, a strange object will appear. Mario will jump into it andt transports Mario to Big Boo's mansion which he and his minions haunt. The Boo's occasionally act like poltergeists and pick up furniture and launch them at Mario. The mansion has 6 doors on the first floor and 6 on the second floor. When Mario reaches the balcony at the peak of the house, he must engage in a battle with Big Boo.
In Super Mario 64 DS , Luigi is being held captive in a level within the level called Big Boo Battle and must be rescued by Mario. In the DS game, Yoshi can't enter this level because "he can't eat ghosts and his attacks aren't strong enough to to kill them, so he needs a mustached hero".
Go On A Ghost Hunt
Ride Big Boo's Merry-Go-Round
Secret Of The Haunted Books
Seek The 8 Red Coins
Big Boo's Balcony
Eye to Eye In The Secret Room
Switch Star in the Basement (DS)
This is the only course in the original game that does not share its music with another course
In Super Mario 64 DS, this is the only course that which not all four characters can access since Yoshi cannot defeat Boos in this game.
This is the only course in the entire game that doesn't have a static entrance.