Big Boo's Haunt
Big Boo's Haunt is the 5th course in Super Mario 64, Super Mario 64 DS, and the 7th stage in Super Mario 64 Goop Expansion. It has 6 missions in the Nintendo 64, 7 in the DS version, and 8 in Goop Expansion. It is themed around a mansion at night ran by Big Boo, and the merry go round and shed off to the side.
Missions
The missions differ between the 3 versions of the game, and will be listed on a game by game basis.
Super Mario 64 (1996)
Go on a Ghost Hunt
Defeat every boo on the main floor of the mansion then defeat the big boo in the main room
Ride Big Boo's Merry-Go-Round
Defeat big boo in the merry go round in the basement of the shed
Secret of the Haunted Books
Wall jump in the piano room onto the second floor then long jump to the star
Seek the 8 Red Coins
Collect any 8 of the 9 red coins in the level. One is currently impossible to get being The Blood Coin, however it is entirely valid to grab that in place of another redcoin.
Big Boo's Balcony
Big boo's balcony has a view of the entire level and you can see outside of the cage the level takes place in and into the courtyard you are shrunken in.
Eye to Eye in the Secret Room
Defeat the big eye in the room in the top of the mansion
Big Boo's Haunt 100 Coin Power Star
100 Coins
Super Mario 64 DS (2004)
All missions are the same with the exception of a switch star just outside of the Merry-Go-Round.
Super Mario 64 Goop Expansion (199X)
The goop expansion has all of the same missions as the original Nintendo 64 version, with the addition of 2 Goop Themed levels.
Clean the Goopy Boo
Taking place as a direct sequel mission to Ride Big Boo's Merry-Go-Round, Big Boo in the Big Basement of Big Boo's Mansion begrudgingly beholds a basic request to the player, cleaning the boos weighed near the water. Mario has to dig a moat using a shovel to route the water to the boos in order to clean them off. After you do this to the 3 boos, big boo rewards you with a power star
Graffiti Madness on the Balcony
Jump into the graffiti painting on the balcony and defeat the onslaught of enemies in a mini boss rush segment. After wave 5 you get a 1-up and an option to leave and after wave 10 you get a power star.