Luigi's Mansion 3 Floor 15 walkthrough - 100% 15F Master Suite Guide and How to Get In

Check out our Luigi's Mansion 3 Floor 15 walkthrough to see the 100% 15F Master Suite guide and how to get in past the big screen.
The game comes to a head for Luigi, Mario, Princess and the Toads on Floor 15 as you take on the might of both Hellen Gravely and her beau King Boo. Although, by this stage, the end-game boss isn’t very enamoured by the hotel owner after all of her failures. You’ll need to collect all of the keys to get into the final boss fights and there are the Floor 15 gems to grab as well, which you can see in the walkthrough video. It’ll also guide you through all fights, whether against a boss, or the heavy ghost presence on 15F.
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Remember to hit that like button and share our Luigi's Mansion 3 Floor 15 walkthrough - 100% 15F Master Suite guide and how to get invideo on Facebook, Twitter, Google+, Pinterest or any other social media channel you use. This is part of our wider series on the threequel, which will include our gem guide, hints and tips, plus videos on tough sections and all of the boss fights that you need to face.
You can read more about the plot and gameplay for Luigi's Mansion 3 over on the Wikipedia page at en.wikipedia.o..., which might help you to understand the setup of Floor 15 a bit more if you've been working your way through the walkthrough slowly.

[@ReleaseFire]

What's the toughest section of Floor 15 in Luigi's Mansion 3? Drop a comment to let me know 👍

[@jeffysbram1259]

The King Boo Part

[@Arrocha305]

Luigi’s mansion is that game where no one will judge you for needing help

[@teko4752]

Just call me no one then

[@Kqwai]

@@teko4752alr no one.

[@NittyGritty420]

Foreal this game would take me years to figure out without help. It’s so easy yet so hard at the same time.

[@unknownnstuff9635]

I figured out like 70 percent of them on my own due to Luigi’s limited skills leaving you little to think about

[@prkzcr]

@@teko4752why are u on this vid then 😂

[@icebreaker6573]

I need to beat a heart and I need help on it thank you :)

[@brittrugg2676]

I hope there’s a 4. I love this game.

[@nataliafonseca4511]

There will be 2023

[@blocksheep]

@@nataliafonseca4511 no 4th game has been announced yet, so it wont be in 2023

[@zaidthegamer3257]

@@blocksheep it might be I could be wrong

[@Mma-o2c]

@@blocksheep qq1qkq

[@Natsgarden436]

@@nataliafonseca4511it is 2023 right now stop lying lol

[@amymann5928]

Omg I can't thank you enough I wouldn't have x buttoned the doors if it weren't for you

[@insomniac671]

I can't thank you enough man. You really helped me beat this game and I thank you alot for that, keep producing great content. You're amazing, never forget it.

[@k41511]

Thank you so much! You have really helped me kill every single boss and get all the gems! :) i hope you keep producing great content and game guides!

[@ReleaseFire]

Thanks dude. Glad they helped out

[@tiffanyminnifield2852]

I just need to find the keys

[@tiffanyminnifield2852]

So this might work release fire

[@malouwielinga4300]

​@Azad h

[@SawyerM-nk1lq]

​@@ReleaseFireI'm just watching your video because I need The keys

[@Sinn0100]

Helen was so damn irritating that I was moments away from quitting. Everytime I grabbed her she would b-line it right into one of her barriers...usually the purple one as that was the only one left. I wound up beating her with 9 health left. I finally got tired of being thrown off her every time that I stopped having Luigi go under to turn off her barriers. I would hit her with the vaccum wait until she got close to a barrier and let her go. Thankfully, I was able to slam her twice before that so her health was low. Some of the bosses in this game aren't difficult as they are infuriatingly cheap. The guy in the water with the counter intuitive raft controls was also a nightmare.

[@throneofglass3918]

I would be dead if it weren’t for the hearts in the wall

[@Sinn0100]

@@throneofglass3918 Same.

[@MiaTheCat2024]

You know with all that money u can buy golden bones right? And if u die u can come back to life

[@luissalazar7545]

how?

[@timohara7717]

​@@luissalazar7545 idk buy

[@jeffkoh79]

Sure level 15 is for kids or design to make it hard to finish. Omg.

[@anonymoustachy]

The master bathroom's floating toilet and what appears to be a second floor, bothered me as I was playing this game.

[@nathaniallemaire9756]

So how do you get the floating toilet?

[@adrianogoncalves9057]

Legal de mais

[@louiserosealma5356]

I can't figure this one out!!

[@timohara7717]

​@@nathaniallemaire9756 you need to be in co op

[@davemarin7340]

PLEASE CAN ANYONE TELL ME HOW TO MOVE THAT DAMN TOILET

[@Videojunki]

I’m trying to figure it out too 😢😢

[@zinbfoulan4759]

Just click y

[@KillStealerExe]

31:38 Thanks for showing me the mannequin was the lever. I tried not looking up tutorials but this room got me.

[@imin2jewelry]

I love and hated this floor at the same time . 😂

[@notso_stupid7041]

Me the last 2 phase:well this guy seems easy enough to fight The 3rd phase:still pretty easy(totally did not rage quit)

[@Christuber-cr9gy]

Thx so much I’ve been watching lots of guides since Luigi’s mansion 3 floor bc1 I think

[@johnkontos2063]

How do you fill the circle so you can slam her I tried everything

[@HazyRoad]

I ran out of bombs for the invisible powder

[@dragonlord9277]

Thank you now i have all 3 specal items plus the 1 in the DLC🤯

[@shortstorypictures]

Thanks for this series one of my favorite switch games

[@snoewp3245]

I hate king boo now

[@Mgaur9326]

Nice

[@livf363]

i cant get past king boo im getting so frustrated over it

[@ReleaseFire]

Try my King Boo boss guide here kzbin.info/www/bejne/raiceIVuZ8uhh9U

[@richardrash5343]

You are so helpful

[@Skittles_227]

I think you’re really good at this game because before I saw this I used ten bones and now on my eleventh 😢

[@EpicAndrew97]

34:39 theres a bunch of golden spiders in this room that drop down, I don’t know how I got them though

[@ahlamomar8128]

lol

[@nicoleflowers6087]

If I progress

[@SubToAnAveragePerson]

35:05 when this happened i played the ultra instinct theme from dragon ball and started kicking ghost butt

[@marylynch4495]

I love the idea of Goku's ultra instinct music in Luigi's Mansion

[@SubToAnAveragePerson]

Mary Lynch yes

[@galadrielhost3087]

why can't he talk in 15f

[@mandyHKH]

I quit finale game, I got the satisfaction from watching this video

[@owaisbux6384]

i watched all of them i have finished the game

[@Toby0895]

35:04 it gives me oddboy vibes.

[@s.a.m.productions2095]

I'm having trouble with the secret compartment in the library. A little advice, please?

[@SilvUnoREQ]

Its really simple actually

[@Moitami]

25:40 only ogs played that game It's luigi's mansion 2 dark moon

[@bacon9620]

i just defeated king boo:D

[@paulcamren8756]

T would’ve have been nice if they gave some feee F’n hearts in this . It’s bullshit .

[@timohara7717]

They... do?

[@Videojunki]

Is there a way to get the toilet down???

[@FutureRken]

Thanks I hated this part 🙂

[@Tommymol]

cep it like that

[@johannilsson8414]

this is the best game

[@amandaessebaggers5255]

L

[@amandaessebaggers5255]

D

[@lamtsang3236]

How do you call back your Gooigi?

[@Abyssalfrequencies]

CALL IT TWICE

[@link27823]

Thanks soooooo much!!!

[@sillyluigibros7477]

I am to this ghost is hard she’s creepy with those red eyes of hers but she is sassy as well

[@brittanystephens7784]

Just going to help me pretty well

[@sukihuang3460]

Thanks

[@adrianafaltyny2609]

This video is not helpful at all I’m still stuck with defeating king boo when there’s 3 of them, you made me take the bomb and try to throw it at king boo, but no that only got me dead.

[@anabanana5732]

Yea I I think there’s a specific real one and you don’t know until you throw

[@Doire0710]

What bottom does one use to release googi l? Need help..

[@thewhat8544]

You push the joystick that you use to walk.

[@timohara7717]

If you never figured out goigi, then why are you here? That's weird because goougi is reqired

[@Super_Plushie_Mario_Bros.]

Hi

[@chaff1kl]

Good job

[@wasapdoc]

Wow nintendo is sick psychopath.

[@stephenpark8722]

Lies. You didn't drop the toilet. Idk how but in co op my gf and I accidentally did it.

[@timohara7717]

You can only co op it idk why

[@peachypie1810]

So the game in 2 player mode its nice to have a friend play

[@andresabreo2372]

Yay am great finish t'is game for you!

[@sillyluigibros7477]

Idk

[@Coolperson633]

Same thx so much

[@southern1379]

A

[@Moonx4life]

C

[@griffinjd123]

so cool

[@bayyinahN]

0/100

[@brittrugg2676]

That’s not very nice.