The Cellar is a room in Gloomy Manor in Luigi's Mansion: Dark Moon. It is the final area explored in Gloomy Mansion, and it is only accessible from the elevator in the Lobby. It is also where Luigi fights the Grouchy Possessor and obtains the first Dark Moon piece.

In Luigi's Mansion: Dark Moon[]

During A-Boss: Confront the Source, E. Gadd sends Luigi to the Cellar after discovering the Dark Moon piece is hidden from down there. Luigi reluctantly goes to the Cellar where he fights the large spider queen. During the battle, Luigi discovers that a strange, white ghost has possessed the body of the spider queen and heads back in. Luigi manages to capture the Possessor ghost into the Poltergust 5000 and obtains the first Dark Moon piece.

[Edit]
Major characters	Major characters	Luigi • Mario • Professor E. Gadd • Toad • Polterpup • King Boo
Ghosts	Regular	Ancient Poltergeist • Boo • Creeper • Gobber • Greenie • Gold Greenie • Hider • Poltergeist • Polterpup • Slammer • Sneaker • Strong Gobber • Strong Greenie • Strong Hider • Strong Slammer • Strong Sneaker • The Three Sisters
	Bosses	Story mode: Ancient Poltergeist • Big Boo • King Boo • Three Poltergeists • Possessors (Grouchy · Harsh · Overset · Shrewd · Tough) • A Strong Gobber, a Strong Greenie, and a Strong Slammer • Strong Poltergeist • The Three Sisters ScareScraper: Beetle Whisperer • Bomb Brother • The Brain • Creeper Launcher • Primordial Goo • Terrible Teleporter
Other species and enemies		Bat • Beetle • Crow • False door • Flytrap • Frog • Fuzzball • Gold Robomb • Mouse • Orange flower • Robomb • Spider
Locations	Gloomy Manor	Balcony • Bedroom • Cellar • Coatroom • Common Hall • Dining Room • Entrance • Foyer • Front Yard • Garage • Guard Hall • Kitchen • Lab • Library • Lobby • Master Hall • Mudroom • Mudroom Exterior • Parlor • Patio • Rafters • Secret Pocket • Studio • Study • Under the Stairs
	Haunted Towers	Botany Lab • Conservatory • Courtyard • Crow's Nest • Crypt • East Hall • Eerie Staircase • Family Room • Garden • Gardener's Dwelling • Gardener's Lab • Greenhouse • Haunted Towers Entrance • Hollow Tree • Hydro Generator • Laboratories • Lounge • Old Graveyard • Plant Nursery • Rooftop Pool • Rumpus Room • Seedling Laboratory • Sewer • Skybridge • Solarium • Tool Shed • Toolshed Stairs • Tower Lobby • Tree House • Tree Root • Water Supply • West Bathroom • West Bedroom • West Garden • West Hall
	Old Clockworks	Antechamber • Belfry • Belfry Clock • Canyon Hall • Canyon Narrows • Canyon Stairs • Cargo Room • Clock Tower Gate • Clockmaker's Chambers • Clockworks Court • Container Yard • Crank Room • Drafting Office • Finishing Room • Gear Chamber • Kiln Room • Maintenance Hub • Movements • Pit Slide • Quarry • Roundhouse • Roundhouse Pit • Service Elevator • Storage Room • Storm Cellar • Synchro Gantry • Synchronization Room • Tomb • Transportation Hall • Warehouse • Workshop
	Secret Mine	Airway • Basin • Chalet • Chalet Approach • Cinder Mine • Coward's Chasm • Crossroads • Crystal Quarry • Deep Hall • Drift Hall • Frozen Pit • Fishing Hut • Gondola • High Wires • Ice Lake • Maintenance Room • Pit Mine • Prospector's Crossing • Shaft • Skip Slope • Smokehouse • Smuggler's Hideout • Terminal • Under the Ice • Workshop • Workshop Landing
	Treacherous Mansion	Ancient Exhibit • Archives • Aviation Exhibit • Bottom of Well • Ceremonial Chamber • Cliffside • Dark Age Exhibit • Dungeon Cells • East Balcony • East Corridor • East Gallery • Front Entrance • Gargoyle Roof • Grand East • Grand West • Guard Tunnel • Haunted Catacombs • Ice Age Exhibit • Inner Courtyard • Jungle Exhibit • Kitchen • Nautical Exhibit • Restrooms • Space Exhibit • Study • Terrace • Train Exhibit • Underground Lab • Veranda • West Balcony • West Corridor • West Gallery
	Other	Bunker • E. Gadd's Vault • King Boo's Illusion • Mario's Painting • ScareScraper • Toad's Painting
Items	Items	Amethyst • Bill • Coin • Diamond • Emerald • Gem • Gold Bar • Gold Bone • Key • Poltergust 5000 • Red Coin • Ruby • Sapphire • Strobulb
Objects	Objects	Bulb (gold) • E-Gate • Paranormal portal • Paranormal shield • Sled-mounted shooter
	Equipment	Dark-Light Device • Dual Scream • Pixelator • Poltergust 5000 • Strobulb
Missions	Gloomy Manor	Poltergust 5000 • Gear Up • Quiet Please! • Visual Tricks • Sticky Situation • Confront the Source • Gradual Infiltration
	Haunted Towers	A Job for a Plumber • The Pinwheel Gate • Graveyard Shift • Pool Party • Doggone Key • Tree Topping • Hostile Intrusion
	Old Clockworks	A Timely Entrance • Underground Expedition • Roundhouse Brawl • Play Catch • Piece at Last • Showtime • Outlandish Interruption
	Secret Mine	Cold Case • Hit Rock Bottom • Across the Chasm • Chilly Ride • Severe Infestation
	Treacherous Mansion	Front-Door Key • Double Trouble • A Train to Catch • Ambush Maneuver • Paranormal Chaos • Stop the Knightmare • Terrifying Invasion
	King Boo's Illusion	A Nightmare to Remember
Further info	Further info	Gallery