Get the first star then go back in.
On the second floor of the Haunted Mansion.
You must enter boos mansion and go the place where there is a ? box, but not the one on the second floor, and go on top of that ? box.
It's at the top of the flight of stairs on the second floor.
The soothe bell is found in the Pokemon Mansion on route 212. The soothe bell is given to the player by the maid on the second floor.
HERES how you get luigi properly go to the courtyard with Mario (you need 8 stars) defeat that bigger boo then you go to haunted mansion and then check the door where theres a floor where you drop and go to that shed first enter go up that platform and then hit that block and fly up then stomp go to the luigi painting hope that help BYE!! no really bye :| BYE ALREADY!
On the second floor of the Haunted Mansion.
You must enter boos mansion and go the place where there is a ? box, but not the one on the second floor, and go on top of that ? box.
you need to get the key from bowser in the basement
when you go to the bottom floor of the bathroom!
second floor left in 3D
It's at the top of the flight of stairs on the second floor.
Well first off you have to get Slim the Pixl he is on the second floor you have to go to the left on the second floor then turn 3d and he is in a chest. To get past the electrical barriers you just have to stand still.
Sadly, no, there isn't. The only ? box that isn't in a level is the one on the castle roof.
you can find him on the second floor of the Sinclair mansion (near camolot.)
On the 3rd floor of Flopside
To get to the door, go straight up through the door in the lobby to the spiral staircase to get to the second floor. It's through one of the doors on that floor.
If you mean the warp pipe, then after you've obtained the Super Boots (found at Boo's Mansion) you can break through the wooden floor panel in the Toad Town Sewers (it's right there when you go underground). Then go through the doorway to your left, defeat the Dizzy Koopas, and it will appear.