List of Boos in Luigi's Mansion 3

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During the events of Luigi's Mansion 3, there are a number of Boos to be found throughout The Last Resort. With the exception of the Master Suite, there is one Boo located on each floor of the hotel. They appear after obtaining the floor's elevator button, and leaving and returning.

Unlike previous entries, which saw the HP of Boos rise with each area, the HP of all Boos remains fixed at 20 HP. Additionally, the precise location of Boos is randomized.

This is a list of all Boos that appear in the game (excluding King Boo), in the order of ascending floor number. There are 17 Boos total (16 excluding King Boo), each of which are unique. Collecting all Boos will grant the player the "Captured All Boos" achievement, unlocking the Flashlight Type-B for the Poltergust G-00.

The following chart shows each Boo's name, the floor it is found on, the specific rooms it can hide in, the origin behind its name, the Japanese equivalent, and the Chinese equivalent.

Locations

English name	Image	Found	Name origin	Possible hiding rooms	Japanese name	Chinese name	French name
ComBooster "Fwooosh! I'm ComBooster! Is it just me, or is it getting pretty steamy in here?" "I'm ComBooster! Fwooosh! Looks like you stayed in the bath for too long!"		Boilerworks	Combuster	Waterworks Observation Main Tank	TBA	害羞水水	Booillant
Boosement "Ho ho, I'm Boosement! Looks like you found me...or did you?" "Ho ho, I'm Boosement! Looks like you're still in the dark! Ho ho!"		Basement	Basement	Laundry Room Garage Service Hallway	テレチカ Terechika	害羞地地	Camboois
GumBoo "Yoo hoo, I'm GumBoo! Oo-wee! Found me! Y'all stay back, now!" "Yoo-hoo! I'm GumBoo! You're no match for me, I gua-ran-tee!"		Grand Lobby	Gumbo	Lobby	TBA	害羞一號	Boogie Woogie
Booigi "I'm Booigi, number one! One of us gonna have to change!" "I'm Booigi, number one! "Waah, help me, Big Bro!" That's you! I was doing you just then!"		Mezzanine	Luigi	Dressing Room Restroom Restaurant	TBA	害羞二號	Booigi
Kung Boo "Hi-yah! I'm Kung Boo! You won't catch me! I flow like water!" "Hi-yah! I'm Kung Boo! Bow to your sensei!"		Hotel Shops	Kung Fu	Elevator Hall Restroom Security Office	TBA	害羞三號	Kung Boo
Boogie "Ta-daaa! I'm Boogie! This hotel is pretty swanky!" "Ta-daaa! I'm Boogie! Once more, from the top!"		The Great Stage	Boogie	Restroom Concession Stand Dressing Room	TBA	害羞四號	Boogie
Boolldog "Arf, arf! I'm Boolldog! I'm off the chain! Grrr!" "Arf, arf! I'm Boolldog! You better turn tail and run!"		RIP Suites	Bulldog	Room 505 Room 506 Room 507 Room 508	テレゴ Terego	害羞五號	Booledogue
Boo-at-Arms "Thou mayest call me Boo-at-Arms! Come, let us duel with honor!" "Thou mayest call me Boo-at-Arms! Thou art ill-equipped for a battle with me!"		Castle MacFrights	Man-at-Arms	Front Gate Coliseum Balcony Stairway	TBA	害羞騎士	Boosquetaire
Bootanist "Hello, they call me Bootanist... It looks like you found me..." "Hello, they call me Bootanist... Please don't step on my lovely flowers..."		Garden Suites	Botanist	Ivy Bathroom Thorny Bathroom Blooming Suite	TBA	害羞綠綠	Booquet
Booducer "Ha ha ha! I'm the Booducer! I can get a table anywhere I want!" "Ha ha ha! I'm the Booducer! You're still too green for the silver screen!"		Paranormal Productions	Producer	Studio 1: Horror Set Studio 2: Castle Set Studio 3: Fire Set Studio 4: Micro Set	TBA	害羞明星	Boobine
Boones "ROAR! My name is Boones! You just dug up a heap of trouble!" "ROAR! My name is Boones! You're about to be extinct!"		Unnatural History Museum	Bones	Exhibit Hall	TBA	害羞龍龍	Booranosaurus
AnuBoo "I'm AnuBoo! Were you fooled by a mirage? Heh..." "I'm AnuBoo! Time to tip the scales in my favor!"		Tomb Suites	Anubis	Scale Chamber Snake Chamber Jewel Chamber	TBA	害羞沙沙	Raboogri
Boofuddler "Huh?! I-I'm Boofuddler! Aw shoot! Looks like you saw through my trick!" "Tee-hee! I'm Boofuddler! Looks like you still have a lot to learn!"		Twisted Suites	Befuddler	Bladed Bedroom False Bedroom Lounge	TBA	害羞魔魔	Boosole
Booccaneer "Avast, me hearties! I be Booccaneer! Let me set sail-there's booty to plunder!" "Arr! I be Booccaneer! It's time for you to walk the plank!"		The Spectral Catch	Buccaneer	Grotto Lounge Beach	TBA	害羞海海	Boolet
Boodybuilder "Yo, bro! I'm Boodybuilder! You're pretty good! You been working out?" "Yo, bro! I'm Boodybuilder! You're lifting way outside your weight class!"		Fitness Center	Bodybuilder	Locker Room Yoga Room Pool	TBA	害羞壯壯	Boogeotte
Boosician "'Sup, dude! The name's Boosician! Got a minute to listen to my demo tape?" "'Sup, dude! The name's Boosician! A'ight, time for me to play myself out!"		The Dance Hall	Musician	Elevator Hall Dance Floor	TBA	害羞舞舞	Booléro

Trivia

• Some of the Boos return from previous entries: GumBoo, Booigi, Boogie and Kung Boo are from Luigi's Mansion, while Boolldog is from the 3DS remake and Luigi's Mansion: Dark Moon.
• When Gooigi begins vibrating in response to the presence of a Boo, the controller vibrates in Morse code reading "-... --- ---", translating to "Boo".
• GumBoo's second quote is a reference to the late Justin Wilson, a Southern American comedian and chef who was known for his catchphrase, "I gar-on-tee!" (I guarantee).