Luigi's Mansion pits you as Luigi, Mario's forgotten brother. Luigi, while checking his mail, found out he won a mansion in a contest. What's weird, is he never entered any contest to begin with. Being the curious person he is, he calls up his brother, Mario, and asks to meet him at the house. Luigi sets forth through a dark and scary jungle to find the house, but sees that Mario is nowhere to be found. Puzzled, Luigi enters the mansion, only to encounter ghosts. He meets up with a scientist, Professor E. Gadd, who explains the situation and hands over the Poltergust 3000. Luigi must now make his way through the mansion's many rooms, sucking up as many ghosts as he can. As you explore, you'll solve mysteries, collect cash and treasures, and face off against boss characters. The ghosts will not give up easily, so you'll need to struggle with them and pull them back using your trusty Poltergust 3000. You'll also encounter boos and other haunted denizens of the house, and unlock new rooms by collecting keys.
Along the way, you can gain special abilities for your vacuum, such as fire, water, or ice. Keep an eye out for coins and paper money hidden throughout the mansion - they might just help Luigi buy his own mansion one day.
The story of Luigi's Mansion slowly reveals its secrets, but a sinister force is at work in that haunted house. Will you ever see Mario again?
The Nintendo 3DS version has some key differences from the Gamecube original. Coins now last longer before disappearing, and local co-op with another player allows a second character to control Gooigi. The game also includes new controls, an achievement list, and a boss rush mode.