Luigi's Mansion Ceiling Warping Guide

In Luigi's Mansion, there is a neat trick where if you use an Action Replay code to stand on the ceiling in some areas, you go through the ceiling and floor and land in another room. Below are some effects of the trick, and where you land.

Boneyard to Armoury- To use this trick, go to the Boneyard. Now somewhere under the overhang near the large flowering plant, press Up and B and you may go through a few floors and land in the armoury. You can get the ghosts as normal, to skip a lot of the game. However, Jarvis won't appear in the neighbouring room, as you don't have the ability to shoot ice yet.

Boneyard to Master Bedroom- Also in the same area, you can do this trick and land in the bedroom, where you fought the second ever portrait ghost. This is totally useless.

Roof to First room ever- To go back to where you fought your first ghost, in the Parlour, as you go to the roof via the elevator in the To Soldier room, press up and B. When you arrive, you should suddenly appear in this room.

Staircase to third floor into the Lounge and Guest Bedroom area- To end up here, go to the back wall near the third floor stairs. Hold B and Up, at a certain point, and you will end up in the lounge, with no escape (door is locked from the outside). Fight the ghosts, and you can also capture the ghost Sue Pea without the proper door key.