Blackout

The Blackout is an event in Luigi's Mansion. After Luigi defeats Boolossus and opens the door to Area 4, several bolts of lightning strike the mansion, causing the power to go out, darkening every room, including ones Luigi has already completed, and allowing ghosts to wander freely. During the Blackout, set groups of ghosts appear in rooms, even replacing ones Luigi has not caught, including Portrait Ghosts. This can make the mansion difficult to navigate. The only rooms without ghosts are the Foyer and the Breaker Room (though it is possible for the latter to have a Speedy Spirit if Luigi had not captured it prior to the Blackout), though they still go dark. In order to turn the power back on, Luigi must find and capture Uncle Grimmly in the Wardrobe Room, causing a chest containing the key to the Breaker Room to appear. Luigi can then enter the Breaker Room and pull a switch that restores the mansion. Rooms that Luigi had not previously completed stay dark except the Breaker Room, which lights up.

Ghosts
This list shows the different ghosts that appear during the Blackout and the rooms they are found in.
 * Parlor
 * 1 Gold Ghost
 * 1 Purple Puncher
 * 1 Blue Twirler
 * Anteroom
 * 4 Gold Ghosts
 * 1 Purple Puncher
 * Wardrobe Room
 * Uncle Grimmly
 * Balcony (2F)
 * 2 Gold Ghosts
 * Study
 * 1 Grabbing Ghost
 * Master Bedroom
 * 2 Gold Ghosts
 * 3 Grabbing Ghosts
 * Nursery
 * 2 Gold Ghosts
 * 1 Purple Puncher
 * 1 Blue Twirler