In "Paper Mario," the code to unlock the door in the mansion (specifically in Boo's Mansion) is 3-1-2-4. You need to enter this sequence on the door after finding clues throughout the mansion. Each number corresponds to the order in which you encounter the Boos that give hints about the code.
41262816
in the mansion
use the key you find.
No, there is not.
the code is 41262816
The ruby vault code is 41262816.
nothen
2625
She is a maid at Merlee's mansion and has set up a few traps there.
level 0 has no code, just start a new game.
no
The code i know is: mirrior