Luigi’s Mansion 3 is the third main entry in Nintendo’s ghost-hunting Luigi-led action-adventure series, released worldwide on 31 October 2019 — a Halloween launch date that perfectly suited the game’s ghoulish theme. It follows the GameCube original Luigi’s Mansion (2001) and 3DS sequel Luigi’s Mansion: Dark Moon (2013), continuing the series’ evolution from single-mansion exploration toward a much grander, more cinematic adventure.

The setting is The Last Resort, a 17-storey luxury hotel that Luigi, Mario, Princess Peach, the Toads, and Polterpup have been invited to visit by its glamorous owner. The invitation, of course, is a trap: hotel manager Hellen Gravely is in league with King Boo, and the entire purpose of the hotel’s existence is to imprison the Mario Bros’ closest friends in haunted paintings. Luigi alone escapes the initial capture, reunites with Professor E. Gadd who has also been trapped, and gets to work clearing one themed floor at a time on his way to confront King Boo at the top.

What Makes It a Mega-Adventure

• 17 themed floors — from the basement Boilerworks to the Master Suite, each floor is essentially its own dungeon with unique architecture, puzzles, mini-objectives, gem hunts, and a portrait-style boss ghost.
• The new Poltergust G-00 — the third-generation ghost vacuum, with three brand-new combat moves: Slam, Burst, and Suction Shot.
• Gooigi — a goo-version of Luigi who can pass through grates, walk on spikes, and squeeze under doors. Solo players can swap between Luigi and Gooigi at any time; local two-player co-op gives a second player control of Gooigi.
• ScareScraper — the online 1–8 player co-op mode, where players climb a randomly generated procedural tower of ghost-filled floors.
• ScreamPark — the local 2–8 player split-screen party mode with three competitive minigames.

The Invitation

Mario, Luigi, Princess Peach, three Toads, and Polterpup all receive a glamorous invitation to a luxury hotel called The Last Resort. They arrive by bus to find a five-star spectacle: chandeliers, golden trim, attentive staff, and a charming proprietor named Hellen Gravely who personally welcomes them.

After checking in, the guests retire to their suites. Luigi falls asleep almost immediately. He wakes in the night to find every door locked and the hotel’s glamour stripped away — the entire building is a haunted, decrepit ghost-trap. He finds Polterpup, then learns that Mario, Peach, and the three Toads have been captured and imprisoned inside haunted paintings, with the paintings now in the possession of Hellen Gravely and her co-conspirator, the recently-escaped King Boo.

Professor E. Gadd’s Lab

Luigi makes his way to the hotel’s basement and discovers Professor E. Gadd trapped in a painting frame on Hellen’s wall. He frees E. Gadd, who reveals he came to the hotel chasing rumours of dark paranormal activity and that his lab — conveniently — is now installed in the hotel’s basement. E. Gadd gives Luigi the new Poltergust G-00, the third-generation ghost vacuum, and unveils its three new moves. He also reveals the existence of Gooigi, a goo replica of Luigi.

Floor by Floor

Luigi must work his way through every floor of the hotel, clearing each one’s themed boss ghost and reclaiming the elevator buttons the ghosts have stolen — each boss carries one button on them — to gain access to the next floor. The elevator structure is the central progression metaphor: every cleared floor adds another button, and Luigi can use the freed elevator to backtrack to earlier floors for collectibles.

The Master Suite — Hellen Revealed

After ascending all the way to the Master Suite (15F), Luigi confronts Hellen Gravely herself. She drops her glamorous illusion and reveals her true ghostly form — a tall, gaunt apparition with a portrait-frame collar. After her defeat, King Boo appears in person to take Luigi on directly, with the captured paintings of Mario, Peach, and the Toads stacked around him.

King Boo’s Defeat

The final showdown returns to the Master Suite’s rooftop area, where King Boo and Luigi face off in a multi-phase battle that culminates with Luigi vacuuming King Boo into the Poltergust G-00. The paintings shatter, Mario, Peach, and the Toads are freed, and the bus ride home leaves the smouldering hotel behind — with one mysterious painting frame still glowing as the credits roll.

Luigi’s Mansion 3 is an action-adventure puzzle game with light combat, played from a 3D third-person perspective. The core loop has barely changed since the 2001 GameCube original — stun ghosts with a flashlight burst, vacuum their HP down, slam them on the floor to finish them — but the moveset, presentation, and structure have been overhauled.

Core Loop

• Stun ghosts with the Strobulb flash.
• Vacuum them with the Poltergust G-00 — drains their HP.
• Slam them on the ground to deal massive damage and stun nearby ghosts (new in LM3).
• Burst when surrounded — releases an explosive air shockwave (new in LM3).
• Suction Shot fires a suction cup with rope attached for pulling things, breaking objects, or anchoring to enemies (new in LM3).

Exploration & Puzzles

Each floor is a self-contained mini-dungeon with its own set of puzzles, environmental challenges, and a boss ghost. Many puzzles require switching between Luigi and Gooigi — only Gooigi can pass through grates and walk on spikes, but only Luigi can swim, ride zip-lines, and survive water. The Suction Shot creates physics-based puzzles around pulling, anchoring, and yanking objects apart.

Collectibles — 102 Gems + 16 Boos

Every floor (with the exception of B2 Boilerworks) hides 6 colored gems: blue, yellow, white, purple, red, and green. With 17 floors, that’s 102 total gems. After story completion, 16 hidden Boos become findable across the hotel using E. Gadd’s Dark-Light Device, returning from the original LM as the Polterpup-themed Boo-hunting endgame content.

The Poltergust G-00 is the most extensively upgraded version of the series’ trademark ghost vacuum. Built by Professor E. Gadd specifically for use against Hellen Gravely’s hotel hordes, it adds three brand-new offensive moves while retaining the classic stun-and-vacuum core loop.

The New Moves

Gooigi is the headline new mechanic in Luigi’s Mansion 3. He is a green-slime replica of Luigi created by Professor E. Gadd, originally appearing in the 3DS remake of the original Luigi’s Mansion as a multiplayer character. In LM3, Gooigi is upgraded to a core feature available throughout the entire campaign.

What Gooigi Does Differently

• Passes through grates and bars — turns into liquid to squeeze through tight gaps.
• Walks on spikes — his goo body is immune to puncture damage.
• Squeezes through cracks under doors and into otherwise unreachable rooms.
• Dies in water — contact with water instantly dissolves him.
• Cannot swim or ride zip lines.
• Limited HP — takes damage from ghosts; can be respawned at any Goo-Pipe.

Solo — Switch Anywhere

In single-player, the player can swap between Luigi and Gooigi at any time with a single button press. Many of the game’s puzzles are explicitly built around switching: Luigi presses one floor button while Gooigi (through bars) presses another simultaneously; or Luigi shoots a Suction Shot anchor while Gooigi pulls the connected rope.

Local Co-Op — Two Players, One Hotel

In two-player local co-op, one player controls Luigi and the other controls Gooigi. The campaign is fully playable in this mode from start to finish, including boss fights. Co-op is a fan-favourite — the awkward physical-puzzle interactions between two real players controlling Luigi and his goo doppelgänger are a constant source of laughter.

The Last Resort hotel’s 17 floors are LM3’s entire campaign — each is a self-contained themed dungeon with its own architecture, puzzles, mini-objectives, gem hunts, and (on all but two floors) a unique portrait-style boss ghost. Luigi must work his way through every floor in order, reclaiming the elevator button each boss carries to access the next floor up.

Floor B2

Boilerworks

Boss · Clem

The hotel’s heating and water-pump room. Pipes, valves, steam puzzles, and underwater sections dominate. Clem is a slow-witted bumpkin engineer ghost obsessed with his rubber-duck inner tube. The only floor with no collectible gems.

Floor B1

Basement

Boss · —

Where E. Gadd has relocated his mobile lab. Luigi returns here between every floor to develop film, sell gems for collectibles, and switch back to Gooigi if needed. No floor boss — Hellen herself first appears here in her illusion form.

Floor 1F

Grand Lobby

Boss · —

The opulent entry hall — ornate ceiling, marble columns, and a central elevator hub. Hellen Gravely greets the Mario gang here in her glamorous human guise. No traditional boss — just the gilded trap that started it all.

Floor 2F

Mezzanine

Boss · Steward

The hotel staff floor — coat checks, valet desks, an unattended bellhop station. The Steward is a tall, snobbish bellhop ghost in white gloves who tries to “service” Luigi by trapping him in a luggage cart. The first proper LM3 boss fight.

Floor 3F

Hotel Shops

Boss · Chef Soulfflé

A mall-style floor with boutiques, an arcade, and a sprawling kitchen. Chef Soulfflé is a French-accented chef ghost who fights from inside his cooking pot, lobbing fish and lobster claws at Luigi.

Floor 4F

The Great Stage

Boss · Amadeus Wolfgeist

A grand opera house with red velvet seats and a chandelier. Amadeus Wolfgeist is a periwigged classical composer ghost who fights Luigi from inside his haunted grand piano — the piano itself becomes the boss arena.

Floor 5F

RIP Suites

Boss · Chambrea

The standard guest suite floor with sleeping caps and bedside lamps. Chambrea is a haughty French-maid ghost who tries to vacuum Luigi up with her own broom-vacuum — a fun mirror-match for the player.

Floor 6F

Castle MacFrights

Boss · King MacFrights

A medieval castle dimension complete with a jousting arena. King MacFrights is a ghost king in full plate armour who battles Luigi from horseback in a lance-versus-vacuum joust. Drops his armour piece by piece as the fight progresses.

Floor 7F

Garden Suites

Boss · Dr. Potter

A botanical greenhouse overrun with sentient plant ghosts and a flooded river running through the centre. Dr. Potter is the head gardener — a botanical professor ghost who fights from inside a giant haunted flowerpot.

Floor 8F

Paranormal Productions

Boss · Morty

A film studio with multiple sound stages, a movie theatre, and a haunted screening room. Morty is a frustrated film director ghost who forces Luigi into three “reshoots” of his horror film — each take involving a different prop set.

Floor 9F

Unnatural History Museum

Boss · Ug

A natural history museum with dinosaur skeletons, a planetarium, and a mammoth exhibit. Ug is a caveman ghost frozen in a giant block of ice who breaks out and rides the mammoth skeleton itself into battle.

Floor 10F

Tomb Suites

Boss · Serpci

An ancient Egyptian-themed dimension with sand dunes, pyramids, and traps. Serpci is a cobra-armed Egyptian queen ghost who summons sand-snake projectiles and creates sandstorm waves across the room.

Floor 11F

Twisted Suites

Boss · Nikki, Lindsey & Ginny

A warped funhouse-magic dimension. Nikki, Lindsey & Ginny are a trio of rabbit-themed magician ghosts who perform stage tricks against Luigi — sawing him in half, vanishing him into top hats, mirror-doubling themselves.

Floor 12F

Spectral Catch

Boss · Captain Fishook

A pirate-ship dimension at sea, complete with cannons and a kraken. Captain Fishook is a one-handed pirate captain with a fishhook for a hand, who fights Luigi across the rigging and topsail of his ghost ship.

Floor 13F

Fitness Center

Boss · Johnny Deepend

A gym floor with weight machines, a sauna, and an indoor swimming pool. Johnny Deepend is a perma-suntanned lifeguard ghost who dives from his lifeguard chair into the pool, becoming a shark-like underwater menace.

Floor 14F

The Dance Hall

Boss · DJ Phantasmagloria

A neon-lit disco with a mirror ball, strobe lighting, and a packed dance floor of partying ghosts. DJ Phantasmagloria battles from atop her elevated DJ booth, throwing vinyl records as projectiles and dropping bass-blast attacks.

Floor 15F

Master Suite

Boss · Hellen Gravely

The hotel owner’s personal floor. Hellen Gravely drops her glamorous illusion and reveals her true ghostly form — a gaunt apparition with a portrait-frame collar. After her defeat, King Boo himself appears for the final showdown.

Every floor has a unique boss ghost guarding the elevator button needed to ascend. Each boss is themed around the floor they haunt and has its own multi-phase fight design — LM3 has some of the most creative ghost-boss encounters in any Nintendo game.

Clem

B2 Boilerworks

Bumpkin engineer ghost with a rubber duck inner-tube. Fights from inside the boiler room while you redirect his cannons.

Steward

2F Mezzanine

Tall, snobbish bellhop ghost in white gloves. Tries to trap Luigi in a luggage cart — the first real boss fight of LM3.

Chef Soulfflé

3F Hotel Shops

French-accented chef ghost who fights from inside his cooking pot, lobbing seafood. Final phase has him become the pot itself.

Amadeus Wolfgeist

4F The Great Stage

Periwigged classical composer ghost. The grand piano IS the boss arena — use Suction Shot to play discordant chords against him.

Chambrea

5F RIP Suites

Haughty French-maid ghost with a broom-vacuum of her own. Tries to vacuum Luigi up in the franchise’s funniest mirror-match.

King MacFrights

6F Castle MacFrights

Armoured ghost king on horseback. Drops armour pieces during a multi-pass joust. Ends with him on foot and “armorless.”

Dr. Potter

7F Garden Suites

Head gardener-ghost wearing a giant haunted flowerpot. Throws seeds that grow into Venus flytrap minions.

Morty

8F Paranormal Productions

Frustrated film director ghost. Forces Luigi into three “reshoots” of a horror film, each with different props and ghost extras.

Ug

9F Unnatural History Museum

Caveman ghost frozen in a block of ice. Breaks out and rides the mammoth skeleton through the entire exhibit hall.

Serpci

10F Tomb Suites

Cobra-armed Egyptian queen ghost. Summons sand-snake projectiles and sandstorm waves; her cobra hands are vacuumable targets.

Nikki, Lindsey & Ginny

11F Twisted Suites

Trio of rabbit-themed magician ghosts. Performs stage magic on Luigi: saw-in-half, top-hat vanish, mirror-doubling.

Captain Fishook

12F Spectral Catch

One-handed pirate captain with a fishhook hand. Fight roves across his ghost ship’s rigging, masts, and topsail.

Johnny Deepend

13F Fitness Center

Perma-suntanned lifeguard ghost. Dives from his chair into the pool, becoming an underwater shark-like menace.

DJ Phantasmagloria

14F The Dance Hall

Neon-lit DJ ghost on an elevated booth. Throws vinyl records and drops bass-blast attacks across the dance floor.

Hellen Gravely

15F Master Suite

The hotel’s “owner” — actually a powerful ghost. Drops her glamorous illusion and battles Luigi in her gaunt true form.

Beyond the 15 floor bosses, LM3 has one recurring mini-boss that haunts Luigi across multiple floors: Polterkitty, Hellen Gravely’s ghostly six-legged tabby cat. Polterkitty’s job is to steal the elevator buttons Luigi has already collected, forcing him to track her down and reclaim them before he can progress.

How She Operates

• Steals elevator buttons at three pre-set story moments — each time she snatches a different button from Luigi’s collection and runs off to hide on a previously-cleared floor.
• Track-her-down hunts — each Polterkitty chase requires the Dark-Light Device, careful timing, and quick reflexes to vacuum her up.
• Transforms when cornered — her cute cat exterior dissolves to reveal a furious, fanged monster cat form with all six legs in full attack mode.
• The chases are increasingly elaborate — each return appearance has more aggressive moves and more complex hide-and-seek logistics.

Polterkitty is one of the most-discussed antagonists in LM3 reviews, frequently cited as the source of the game’s most frustrating moments — backtracking to previously cleared floors to hunt a hidden ghost cat is a love-it-or-hate-it design choice. Defeating her permanently at the third encounter is a significant story beat.

The endgame of Luigi’s Mansion 3 splits into two distinct boss fights: Hellen Gravely and then King Boo.

Hellen Gravely — The Hotel’s Owner

Hellen Gravely is a powerful ghost obsessed with King Boo. She built (or transformed) The Last Resort hotel specifically to lure the Mario Bros into a trap, capture them, and free King Boo (who was imprisoned in a painting at the end of Luigi’s Mansion: Dark Moon) by trading the Mario gang for his release. She acts as the public face of the hotel — charming, glamorous, an attentive host — right up until the trap is sprung.

On the Master Suite (15F), Luigi finally confronts her directly. Her glamorous illusion drops, revealing her true form: a gaunt, tall ghost with hollow eyes and a portrait-frame collar around her neck. The fight involves dodging her teleporting close-range attacks, vacuuming her after stuns, and exploiting the moment she summons portrait minions to overwhelm Luigi.

King Boo — The Ultimate Foe

After Hellen’s defeat, King Boo appears in person to deal with Luigi himself. He has the paintings of Mario, Peach, and the Toads arranged around him as trophies. The final battle takes place on the hotel’s rooftop, a multi-phase encounter that has King Boo summoning gigantic ghost versions of himself, levitating massive haunted boulders, and finally being vacuumed into the Poltergust G-00 in the climactic catch.

The ScareScraper is LM3’s major online multiplayer mode, returning and dramatically expanded from Dark Moon (where it appeared as the ScareScraper for the first time). Up to eight players online (or locally) team up to climb a procedurally-generated tower of haunted floors, completing different objectives on each.

Modes

• Hunt — capture every ghost on each floor within the time limit. The default mode.
• Rush — race to find the exit and escape the floor before the timer expires. Pure speed-running.
• Polterpup — track down hidden Polterpups using the Dark-Light Device. Tense and methodical.

Floor Counts and Difficulty

• 5-Floor Tower — short session, light difficulty.
• 10-Floor Tower — standard run.
• 20-Floor Tower — the marathon. Highest difficulty.
• Endless — climb forever; high scores tracked.

ScareScraper supports 1–8 players, with co-op multiplayer the highlight. Two paid DLC packs (Multiplayer Pack 1 and 2) added new floor themes, costumes for Luigi, and additional ghost variants. The mode was widely praised for tense, tactical online co-op and remains active in the LM community years after launch.

ScreamPark is LM3’s local-only party mode, designed for 2–8 players split between two teams on a single TV (split-screen). It contains three competitive minigames, each with simple rules and high replay value.

Coin Floor

Race to collect more coins than the opposing team. Coins are scattered across a haunted floor; sucking them into your team’s scoring tube grants points.

Cannon Barrage

Capture cannons across a battlefield to fire on the enemy team’s base. Hold more cannons longer to dominate.

Ghost Hunt

Capture more ghosts than the opposing team within the time limit. Pure ghost-vacuuming speed challenge with elimination scoring.

Beyond the boss roster, a small core cast of returning and new characters drives the LM3 story.

Heroes & Allies

Luigi

Player
The reluctant ghostbuster himself. Equipped with the new Poltergust G-00. Has been called by Polterpup’s help when his friends were captured.

Gooigi

Goo-doppelgänger
Luigi’s green-goo replica. Switch-controllable in solo, fully playable by a second player in co-op. Squeezes through grates, walks on spikes.

Polterpup

Ghost dog
Luigi’s loyal ghost dog companion (returning from Dark Moon). Helps Luigi sniff out hidden items and bosses, leads him to story moments.

Prof. E. Gadd

Inventor
The ghost-hunting professor. Returns in his mobile lab, installed in The Last Resort’s basement. Builds the Poltergust G-00 and Gooigi.

Toad

Captive
One of three Toads dragged into the trap. Imprisoned in a painting frame on a hotel floor.

Yellow Toad

Captive
The second Toad captive.

Blue Toad

Captive
The third Toad captive.

Captured Royals

Villains

Hellen Gravely

Hotel owner

Powerful ghost obsessed with King Boo. Built The Last Resort as a trap to capture the Mario Bros and trade them for King Boo’s freedom.

Hellen (True Form)

15F final boss

Hellen’s glamorous illusion drops in the Master Suite, revealing her gaunt true ghost form with a portrait-frame collar.

King Boo

Final boss

LM-series recurring ultimate villain. Wants revenge on Luigi for imprisoning his Boo subjects in the first two games. Fight in the Master Suite rooftop.

Boo

Hidden collectible

Generic Boo enemy and the 16 hidden Boos scattered throughout the hotel for post-game collection via the Dark-Light Device.

LM3 features a varied ghost roster beyond the floor bosses — mostly themed variants of the basic Goob, plus floor-specific exotic ghosts.

Goob Family

The standard ghost enemy. Goobs are dim-witted, purple-tinted phantoms with floppy outlines. They come in many variants, each themed to a specific floor or behaviour.

Goob

Standard

The basic floor-cleaning ghost. The default enemy you encounter on every floor.

Sir Goob

6F Castle

Knight-armoured Goob from Castle MacFrights. Requires Burst to crack the armour.

Neon Goob

14F Dance Hall

Glow-stick-wielding Goob from the Dance Hall floor. Faster and harder to stun.

Goob the Magnificent

11F Twisted

Magician-themed Goob from the Twisted Suites floor. Performs disappearing tricks.

Golden Goob

Rare drop

Drops huge sums of coins when defeated. Spawns randomly and flees if not caught quickly.

Gem Goob

Rare drop

Carries a gem when defeated. Spawns when you’re close to finding a missing floor gem.

102 Gems

Every floor (except B2 Boilerworks) hides 6 colored gems: blue, yellow, white, purple, red, and green. With 16 collectible floors × 6 gems = 96 floor gems, plus 6 additional gems on the rooftop = 102 total.

Gems are sold to E. Gadd in his basement lab for collectibles — figurines, achievements, and 100% completion stats. Each floor’s gems are themed: Castle MacFrights gems are embedded in knight armour, Tomb Suites gems hide inside sarcophagi, Dance Hall gems are stashed inside disco balls, and so on.

16 Hidden Boos

After the main story is complete, 16 hidden Boos appear scattered across the entire hotel. Each Boo is invisible by default — requiring the Dark-Light Device to reveal it, then a vacuum capture to defeat. The Boos are scattered one per floor (excluding B2, B1, and 1F) plus one bonus rooftop Boo, totalling 16.

Catching all 16 Boos is the LM3 endgame achievement, unlocking the highest-rank ending and the Master figurine collection.

Four official Nintendo videos covering Luigi’s Mansion 3 — from its 2018 announcement trailer through Treehouse Live gameplay and a behind-the-scenes prop look at the Poltergust G-00.

Luigi’s Mansion 3 launched on Halloween 2019 to widespread critical acclaim — a Metacritic score in the high 80s, glowing reviews of its boss design and atmosphere, and a strong word-of-mouth wave that carried sales well into the following year.

Acclaim

• Boss design — the 15 themed boss ghosts, each with their own gimmicks, arenas, and personalities, were universally praised as the most creative boss roster in any Nintendo game of 2019. Multiple reviewers singled out Amadeus Wolfgeist’s piano fight and the Castle MacFrights joust as standout moments.
• Floor-as-dungeon design — the decision to make each of the 17 floors a fully-themed self-contained dungeon (rather than just decor variants) was hailed as a generational leap from the LM original’s single-mansion design.
• Visual presentation — Next Level Games’ art direction, lighting effects, and character animation were called best-in-class for the Switch platform. Luigi’s expressive face animation alone drew dedicated review coverage.
• Gooigi co-op — the local two-player co-op mode with one player as Luigi and the other as Gooigi was praised as a family-friendly highlight, even when puzzles weren’t built around co-op assumptions.
• Next Level Games craft — the polish, charm, and humour throughout were seen as evidence of why Next Level Games deserved to be a Nintendo first-party studio.

Criticisms

• Polterkitty backtracking — the single most-criticised aspect. The recurring mini-boss’s habit of stealing elevator buttons and hiding on previously-cleared floors forces tedious backtracking that broke pacing for many reviewers.
• Gem hunts — finding all 6 gems on each floor often required pixel-hunting and re-exploration that fans either loved (completionist heaven) or found exhausting.
• Camera angles — occasional fixed-camera issues in tight spaces and during chase sequences drew minor critique.

Awards

• The Game Awards 2019 — nominated for Best Family Game (lost to Untitled Goose Game).
• Multiple Game of the Year shortlists across 2019 publications, frequently in the family/all-ages categories.
• Game Critics Awards 2019 — Best of E3 shortlist appearances.

Sales Trajectory

• Launch weekend (31 October 2019) — the bestselling Luigi’s Mansion launch in series history. UK debut was Halloween-week #1.
• End of 2019 — 5.40 million copies in roughly two months on shelves — nearly matching the Dark Moon lifetime total of 5.13 million already.
• End of 2020 — 9.46 million copies, comfortably the bestselling Luigi’s Mansion ever made.
• End of 2022 — 12.21 million copies, crossing the 12M threshold.
• As of early 2025 — over 13.86 million copies sold globally, making it the highest-selling LM game by a wide margin and one of the top-30 bestselling Switch games of all time.

Context

To put 13.86M in series perspective: that’s more than the original Luigi’s Mansion (2001) and Luigi’s Mansion: Dark Moon (2013) combined (8.45M + 5.13M = 13.58M lifetime). LM3 single-handedly out-sold the entire prior history of the franchise within five years.

• Halloween launch — released 31 October 2019 worldwide, perfectly themed to its ghost-hunting premise. Nintendo went all-in on the spooky season marketing.
• Next Level Games acquired by Nintendo on 5 January 2021, less than 15 months after LM3’s launch — the first Western studio Nintendo had bought outright since Retro Studios in 2002.
• Gooigi’s origin — first appeared in the 3DS remake of the original Luigi’s Mansion (2018) as a multiplayer character. He proved so popular that NLG made him a campaign co-star in LM3 less than a year later.
• King Boo’s third LM finale — his third time as the series final boss, after the GameCube original (2001) and Dark Moon (2013). LM3’s painting-frame credits teaser hinted he’d return.
• 17 themed floors — most fully-themed individual dungeons in any single Mario-universe title to date. Each is essentially a separate art-direction project.
• The Last Resort hotel was inspired by The Shining’s Overlook Hotel and The Grand Budapest Hotel — NLG cited both as direct references in interviews.
• 102 gems + 16 hidden Boos are the completionist collectibles. Catching all 16 Boos unlocks the highest-rank ending.
• Captain Fishook is spelled with one “h”, not two — a deliberate quirk, not a misspelling. The “fishhook” pun is intact but the spelling diverges.
• Polterkitty—the recurring mini-boss—was inspired by NLG wanting to give Luigi a recurring “rival” antagonist beyond the per-floor bosses, similar to King K. Rool’s recurring appearances in Donkey Kong games.
• Poltergust G-00 follows the GameCube’s Poltergust 3000 and 3DS’s Poltergust 5000. The “G-00” naming nods to E. Gadd’s habit of giving his inventions stepwise-incremental serial numbers.
• Two paid DLC packs — Multiplayer Pack 1 (March 2020) and Multiplayer Pack 2 (July 2020) — added ScareScraper floor themes, new Luigi costumes (knight, pirate, etc.), and new ghost variants. Plus a free updates pack.
• The painting-frame credits teaser — the final shot of the credits shows one painting frame still glowing, widely interpreted as a hint at King Boo’s eventual return in a future LM game.
• Local co-op — the entire campaign is playable two-player with one player as Luigi and one as Gooigi, including all 15 boss fights.
• ScareScraper supports 8 players online — the largest co-op count in any LM-series mode. The procedural tower generation means runs are essentially infinitely replayable.

Box art and key visuals for Luigi’s Mansion 3.

Related coverage on Super Luigi Bros.

Screenshots, key art, box art, and concept art appear throughout the sections above. Official Nintendo trailers are in the Videos section.