In Luigi's Mansion 3 a Boo will appear on all floors on which you have already defeated the boss ghost (hence, there is no Boo to catch on the very top floor. Well, aside from the obvious one). In Luigi's Mansion 3 Boos make an appearance after you complete 2F the Mezzanine.
Once this area is complete E.Gadd tells you Boos can now be found throughout the hotel. To help you find and collect them all, use the Boo Locations guide below. Note: Guide is updating.
How to Catch a Boo? This portion of the Luigi's Mansion 3 guide indicates all the boo locations and provides tips on how to actually find where they're hiding once you're in the correct room. In Luigi's Mansion 3 Boos are ghosts that are named after the sound that one might make when trying to frighten someone. Check out our How to find the hidden Boos guide to get tips on how to find these invisible ghosts that appear randomly in the hotel rooms.
There are 17 Boos total (16 excluding King Boo), each of which are unique. Every single boo location guide in Luigi's Mansion 3 for Nintendo Switch (1080p & 60fps) Enjoy - Rate - Comment - Subscribe =) No Commentary Gameplay by Pr. One of the two main types of collectable objects in Luigi's Mansion 3 are the Hidden Boos.
These are enemies that like to hide themselves in containers in cleared floors of the hotel. Luigi's Mansion 3 Boos are all over the place but will take some time to hunt down as they won't appear until after a floor is cleared in Luigi's Mansion 3. This Luigi's Mansion 3 Boo Locations Guide will show you all the locations where you can find the Boo enemies.
In total, there are 16 Boos that you have to find and capture. There are 16 Boos hiding in the The Last Resort. One Boo appears on each floor of the hotel, barring the Master Suite.
They appear after obtaining the floor's elevator button, and leaving and returning. The precise location of Boos is randomized, but they have fixed rooms in which they can appear; each time the player loads the game, the room in which a Boo appears switches between the fixed. The Last Resort, where Luigi and his friends are invited to spend a "relaxing" weekend, is stuffed full of ghosts.
But none are so elusive and frustrating to catch than the Boos, smaller minions of King Boo himself. The Boos have hidden themselves all across the hotel, one on each floor, and they'll keep moving around until Luigi sucks them up in the Poltergust.