When it says download code, it means the code you get when you buy a prepaid card for the game, from a shop like GAME. You scratch the silver coating off and enter that code into the 3DS eStore, and that'll give you Luigi's Mansion 2.
walmart
in the basment
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
silly! its Luigis mansion
no one knows yet.
King Boo is the last boss