Usage[]

The Dark-Light Device is one of Professor E. Gadd's inventions used by Luigi on his journeys. The Dark-Light Device is mainly used to uncover hidden or invisible objects. This can cast a rainbow-like light that can reveal enemies called Spirit Balls, which Luigi then can use the Poltergust 5000 to vacuum them up. The Dark-Light Device also helps in capturing Boos, find tracks leading to the Polterpup, and to aid in fight with certain ghosts (such as Sneakers). It can also reveal coins and even Toad Assistants in paintings Luigi first acquires the Lab of Gloomy Manor during the fourth mission A-4: Visual Tracks.

The Dark-Light Device can be used by holding the "Y" button. Be careful as if the gauge for the Dark-Light Device is used up, it will overheat and leave Luigi wide open to ghost attacks. The Dark-Light Device can be upgraded after Luigi has cleared a mission and has the necessary money.

The Dark-Light Device returns in Luigi's Mansion 3 with the same functions as the previous game. The key difference is that there is no longer a burn-out meter allowing Luigi (and Gooigi) to use the Dark-Light Device for as long as desired.

Navigation[]

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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

Characters	Protagonists	Gooigi • Luigi
	Antagonists	Hellen Gravely • King Boo
	Supporting characters	Mario • Polterpup • Professor E. Gadd • Princess Peach • Toads
	Bosses	Amadeus Wolfgeist • Boolossus • Captain Fishook • Chambrea • Chef Soulfflé • Clem • Serpci • Steward • Kruller • Nikki, Lindsey, & Ginny • King MacFrights • Dr. Potter • Morty • Polterkitty • Ug • Johnny Deepend • DJ Phantasmagloria • Hellen Gravely • King Boo
Enemies	Normal ghosts	16 Boos • Gem Goob • Golden Goob • Goob • Hammer (Disco Hammer • Hammersaurus Rex • Slabhammer • Tutankhamer) • Mini Goob • Mini Hammer • Mummy • Oozer • Slinker • Spirit Ball • Trapper
	Rare ghosts	Speed Goob • Speed Hammer • Speed Oozer • Bomb Goob • Bomb Hammer • Bomb Oozer • Regen Goob • Regen Hammer • Regen Slinker • Lethal Goob • Lethal Hammer • Lethal Oozer • Lethal Slinker • Thieving Slinker • Medic Goob • Electric Oozer • Diffusing Goob • Diffusing Hammer • Warp Slinker
	Other enemies	Bat • Crow • Mouse • Possessed Bin • Snake • Spider • Takarabako Obake
Items and objects	Items and objects	Bill • Bomb • Coin • Coin pile • Elevator button • Elevator tracker • Gem • Gold Bar • Gold Bone • Key • Pearl • Boo Ball • Trap Detector
Equipment	Equipment	Dark-Light Device • Flashlight • Poltergust G-00 • Strobulb • Suction Shot • Virtual Boo
Rooms	Boilerworks	Drainage Control • Drainage Control Hall • Elevator Hall • Main Tank • Observation • Old Reservoir • Reservoir • Sewer A • Sewer B • Sewer C • Storage Room • Waterworks
	Basement	Elevator Shaft • Garage • Laundry Room • Lab • Service Hallway • Service Stairwell
	Grand Lobby	Lobby
	Mezzanine	Ballroom • Dressing Room • Entertainment Room • Lobby • Hallway • Kitchen • Restaurant • Restroom • Storage Room
	Hotel Shops	Accessories • Barber Shop • Boutique • Coffee Shop • Elevator Hall • Gift Shop • Hallway • Lost and Found • Mall Lobby • Restroom • Security Office
	The Great Stage	Auditorium • Concession Stand • Dressing Room • Elevator Hall • Restroom
	RIP Suites	Elevator Shaft • Hallway • Laundry Room • Room 501 • 501 Bathroom • 501 Balcony • Room 502 • 502 Bathroom • Room 503 • 503 Bathroom • Room 504 • 504 Bathroom • Room 505 • 505 Bathroom • Room 506 • 506 Bathroom • Room 507 • 507 Bathroom • Room 508 • 508 Bathroom • 508 Balcony • 5F Exterior
	Castle MacFrights	Antechamber • Armory • Bridge Room • Cage-Lift Room • Cart Storage Room • Cellar • Coliseum • Coliseum Balcony • Coliseum Hallway • Dungeon • Front Gate • Hall of Armor • Royal Coffers • Stairway • Waterwheel Room
	Garden Suites	Atrium • Blooming Bathroom • Blooming Suite • Elevator Hall • Ivy Bathroom • Ivy Suite • Mushroom Suite • Thorny Bathroom
	Paranormal Productions	Backstage • Editing Room • Elevator Hall • Entrance Hall • Studio Entrance • Studio 1: Horror Set • Studio 2: Castle Set • Studio 3: Fire Set • Studio 4: Micro Set • Studio 5: City Set
	Unnatural History Museum	Elevator Hall • Exhibit Hall
	Tomb Suites	Altar Chamber • Central Chamber • Elevator Hall • Hidden Passageway • Jewel Chamber • Pit Chamber • Sandy Grand Hall • Scale Chamber • Secret Passageway • Snake Chamber
	Twisted Suites	Bladed Bedroom • Elevator Hall • False Bedroom • Gallery • Hall • Illusion Bathroom • Inverted Bedroom • Laundry Room • Lounge • Mirror Bathroom • Stage • Suit Bathroom • Trainer's Bedroom • Wardrobe • Water Tank Bathroom
	The Spectral Catch	Beach • Elevator Hall • Grotto Lounge
	Fitness Center	Elevator Hall • Gym Lobby • Locker Room • Pool • Pool - Back Access • Shower Room • Training Room • Weight Room • Yoga Room • 13F Exterior
	The Dance Hall	Dance Floor • Elevator Hall
	Master Suite	Drawing Room • Hallway • Library • Lounge • Main Observation Room • Master Bathroom • Master Bedroom
Other	Other	ScareScraper • ScreamPark • The Last Resort
Further info	Further info	Beta elements • Gallery • Quotes