Luigi after he has opened a Fake Door in Luigi's Mansion.
Fake Doors (also known as Trapdoors) are a special type of doors that appear in Luigi's Mansion, Luigi's Mansion: Dark Moon and Luigi's Mansion 3. Although they seem to be gateways from room to room, they are actually traps. It's possible that King Boo is their creator due to his devious nature and the fact that they were created to confuse and injure Luigi as the green clad plumber makes his way through the mansion.
Behaviour[]
Luigi's Mansion[]
In Luigi's Mansion, a Trapdoor is activated if Luigi attempts to open it in his attempt to pass through, at which point it will quickly swing into him, flattening him against the wall. This causes Luigi to drop Coins and lose 10 of his HP. However, there are a few ways to find out if a door is fake. Firstly, the player has to press "Y" to look at the map. They will notice that Fake Doors don't appear. This is a clue to avoid them. A secondary way is to look below a door to see if there's a mat. If the door does not have a mat, it's fake. However, some doors such as the one that leads to the Laundry Room and Madame Clairvoya's room do not have a mat, so it might be easier to look at the map. Another way is if Luigi happens to walk past a door that is fake, he then looks at it for a brief second, revealing that it's fake. Luigi will not look at a door that is real. Also, most Fake Doors appear on the wall furthest away from the TV screen. Lastly, if Luigi uses his vacuum on a door that's not fake, it will shake and rumble. Fake Doors are unable to do this.
There is a way for Luigi to eliminate a Fake Door, by simply sucking up a fire Elemental Ghost and use it to burn a Fake Door. After that, the Fake Door will disappear. However, if Luigi enters two different rooms, including hallway corridors, the door will reappear. It should be noted that during the blackout (which occurs near the end of the game), the number of Fake Doors have increased in more areas, as well as areas that had Fake Doors even before the blackout.
Using the Fire Element, you can also cause a glitch in the game. Where if the door vanishes as it's being burned and you press "A" quickly enough, an invisible door will flatten him. This is because the game doesn't expect you to do that and figures that the door is still there for that moment.
If the Damage of a Fake Door causes a Game Over, the game won't have enough time to display Luigi's death animation, because the animation of Luigi being flattened and getting up again takes too long.
Luigi's Mansion: Dark Moon[]
In Luigi's Mansion: Dark Moon, Fake Doors give Luigi the same fate as in the first game; slamming him against the wall multiple times. However, in this game, their danger level is lowered; Fake Doors will only make Luigi lose 5 HP. Luigi will hold on to his treasure as well. There is no way, save for the map, to tell a Fake Door apart from a real door, and since there is no Fire Elementals, there is no way to get rid of them either. On the map, they will not be shown, indicating that the door is fake.
Luigi's Mansion 3[]
In Luigi's Mansion 3, fake doors appear in the ScareScraper mode. They act similar to the first two games, dealing 10 damage and traps the player between it and the wall until another player comes and breaks it using the Suction Shot. They can also be removed with the Suction Shot without being opened.
