Nintendo Switch
Action Adventure
Gems & Boos
Luigi's Mansion 3 Guide Hub
Everything you need for Luigi's Mansion 3 in one place: floor walkthroughs, Gem locations, Boo cleanup, boss fights, Polterkitty routes and multiplayer help.
Luigi's Mansion 3 Guides
Jump into the main Luigi's Mansion 3 guide routes by topic.
Game Overview
Quick facts for players planning a hotel cleanup route or deciding which Luigi's Mansion 3 guide to open first.
Recommended Guide Route
A practical order for clearing the Last Resort without turning every floor into a backtracking maze.
Play floor by floor first.
Follow the main walkthrough until a floor is clear and the elevator route opens naturally.
Pick up obvious Gems as you go.
Grab visible Gems during the story, but save tricky Dark-Light and Gooigi puzzles for cleanup.
Return for Boos after floors are unlocked.
Boo hunts are easier once you can revisit rooms quickly and recognize the strongest vibration clues.
Handle Polterkitty routes in order.
When Polterkitty steals an elevator button, use a focused chase route instead of searching the whole hotel.
Finish bosses and multiplayer last.
Clean up boss rematches, rare ghosts, ScareScraper and ScreamPark once the story controls feel automatic.
Luigi's Mansion 3 FAQ
Which Luigi's Mansion 3 guide should I start with?
Start with the Floor Walkthrough if you are still moving through the story. Use Gem Locations and Boo Locations when you are returning for cleanup after more floors and tools are available.
How many Gems are in Luigi's Mansion 3?
Each main hotel floor has six Gems. The best route is to collect easy Gems during the story, then return later for hidden rooms, Dark-Light puzzles, Suction Shot objects and Gooigi-only paths.
When should I hunt Boos?
Save serious Boo hunting until after you have cleared the related floor. Boos move through containers and rooms, so it is faster when the floor layout is familiar and you can follow stronger vibration clues.
How does Gooigi work in Luigi's Mansion 3?
Gooigi can slip through grates, walk over spikes and help with two-character puzzles, but he is weak to water. In co-op, a second player can control Gooigi after he is unlocked early in the story.
What is the best way to catch ghosts?
Stun ghosts with the Strobulb, start vacuuming with the Poltergust G-00, then use Slam when the window opens. Many stronger ghosts require you to dodge, reveal, or remove a shield before the normal capture loop works.
Where does Polterkitty go?
Polterkitty routes send you back through specific floors after an elevator button is stolen. Follow footprints, listen for room clues and use the Dark-Light Device when the trail disappears.
Can you play Luigi's Mansion 3 in co-op?
Yes. The story supports Luigi and Gooigi co-op after Gooigi is unlocked. ScareScraper and ScreamPark add separate multiplayer modes for larger groups locally or online.
What should I do after beating King Boo?
Return to each floor for missing Gems and Boos, finish money and achievement-style cleanup, then try ScareScraper for rare ghosts and multiplayer objectives.