it is on the 2nd floor to get to the 2nd floor triple jump to it then on the far right you can see the ?box
Goombas,koopas,boos, and his biggest:Bowser
If you think the room with Luigi's portrait, it's on the 2nd floor. You have to be Mario. It's one of the rooms on the right, there's a power flower block. Float with Mario up and then it's piece of cake to find the portrait.
you cant Yoshi cant kill ghosts
first, go to the big boos haunt and go upstairs. go in the room farthest to the right. jump on the ledge and get the power flower. float up to the ledge and ground pound. go into the door you will see a luigi painting.
You get Luigi in big boos haunt. To get to his painting you have to get the first stairs to unlock the stairs. Then you go back into big boos haunt go up the stairs goto the last door on the right. Jump on the ledge and, then jump on the '?' box then onto the higher ledge. Go through the door and, you see his painting jump in it. And complete the course. And defeat king boo at the end. To get Luigi's key.
Go to the same place where you went big boos balcony make sure you are Luigi and be invisible and then... go in the corner, jump in the boo painting, MAKE SURE YOU ARE INVISIBLE WITH LUIGI. And then, run around the eyeball-keep running until it gets smaller and then pops out a star. Good Luck!
Go to the entrance of the castle where the light is shining down and look up. You will be teleported to an area high above the clouds. There you will find the switch that turns all "!" blocks solid. Then go to Big Boos Haunt and go to the library. There you will find a "!" block. Make sure you are playing as Mario. Grab the Power Flower and inflate into a balloon. Float up to the secret balcony and go through the door. There you will find a picture of Luigi. Jump into it and beat King Boo to unlock Luigi.
Franz Boos died in 1832.
Carl Boos was born in 1806.
Martin Boos died in 1825.
Martin Boos was born in 1762.
Wolfgang Boos was born in 1975.