((You are a Boo under King Boo's employment. He hatched a grand scheme to turn the Super Mario Bros. into paintings, and you are one of the many Boos he told his plan to. You, alongside 49 other Boos, hide underneath the floor in one of the rooms of the mansion King Boo spawned. One night, King Boo sent a letter to the Mario Bros. residence to inform them that Luigi had supposedly won in a sweepstakes. Mario, being eager to check out the mansion, headed off without Luigi. King Boo seized the opportunity to turn Mario into a painting, prompting Luigi to look for him in the haunted mansion.))

You have been lying in wait for quite some time, but eventually you hear that Luigi enters the room you and your Boo colleagues are waiting in. After solving a puzzle to make the wall retract, Luigi presses a suspicious button on the wall. — M-M-Mario, are you in-a there?