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Luigi's Mansion 3 Walkthrough

Luigi's Mansion 3 guide hub

Explore every floor of The Last Resort, rescue the missing guests and complete Luigi’s Mansion 3’s hotel collection. Follow the story route below, then use the separate six-colour gem pages, Boo searches and achievement lists to finish what remains. Screenshot galleries show the existing Mariofans routes with an image viewer for closer inspection.

Story walkthrough — recommended order

  1. B1 — Basement and E. Gadd
  2. 1F — Grand Lobby
  3. 5F — RIP Suites
  4. 3F — Hotel Shops
  5. 2F — Mezzanine
  6. 4F — The Great Stage
  7. 6F — Castle MacFrights
  8. 7F — Garden Suites
  9. 8F — Paranormal Productions
  10. Polterkitty — First Chase (8F and 7F)
  11. 9F — Unnatural History Museum
  12. B2 — Boilerworks
  13. 10F — Tomb Suites
  14. 11F — Twisted Suites
  15. Super Suction — Toad’s Boilerworks Return
  16. 12F — The Spectral Catch
  17. 13F — Fitness Center
  18. Polterkitty — Second Chase (13F, 12F and 11F)
  19. 14F — The Dance Hall
  20. 15F — Master Suite
  21. King Boo — Final Boss and Ending

Collections, achievements and preparation

How to use the gem pages

Every regular floor chapter links to its own six-gem page. The main route follows story progression rather than numerical floor order: 5F, 3F and the return to 2F occur early, while B2 comes after the museum. Return-visit requirements are listed before each gem set.

What full completion means

The hotel has 102 gems and sixteen Boos. The highest ending rank is A, based on money remaining. Completing all fifty-three achievements also includes ScareScraper tasks, including multiplayer revivals; these extend beyond the single-player hotel route.

Essential tools

Use Dark-Light to restore missing objects and reveal hidden ghosts. Gooigi passes through bars and pipes but dissolves in water. Keep one character’s action held while switching when a mechanism needs two Poltergusts. Super Suction works at special sockets after the later B2 upgrade mission.