After you defeat Boolossus, the third area boss, the power will go out. When the power is out, ghosts will always be appearing, and although you might want to turn the power on, there are some Speedy Spirits that only appear when the power is out, so check the rooms again.
in the basment
walmart
trapped in a portrait on the final level of luigis mansion
Yes there will be a luigis mansion 2. Its called the elictric boogaloo
probably in the laundry room
you dont get luigi mansion in the day
Go to VidoEmo.com. there are plenty walkthroughs there.
poltergust 3000
no luigis mansion is on gamecube buy 1 they r cheap 30 $ or so
King Boo is the last boss
no one knows yet.
silly! its Luigis mansion