The Last Resort

The Last Resort is a hotel and the main setting of Luigi's Mansion 3. Mario, Luigi, Princess Peach, and three Toads are invited there for a vacation party by the hotel's owner, Hellen Gravely, unaware that the hotel is haunted and Hellen is working with King Boo to trap them all in paintings. Its name is derived from the phrase "last resort," which refers to an option one takes when nothing else works.

After both King Boo and Hellen Gravely were defeated, the hotel ended up collapsing due to the strain enacted upon it by the former enlarging the portrait, although Professor E. Gadd, the Mario Bros., the Toads, Princess Peach, and the ghosts attempt to rebuild it. Like Luigi's NEW Mansion from the first game, depending on the rank the player gets in the game's ending, the rebuilt hotel will vary slightly.

Floors
Bold boss ghosts indicate main bosses, who involve saving somebody afterwards. Also note that in-game, the floors are not visited sequentually.

Ranks and gold required

 * Rank A: Finish the game with 70,000G or more. The hotel will be fully restored to its original glory, with four E. Gadd glasses-style windows befitting the transitional portions of the central turret as well as the very top.
 * Rank B: Finish the game with 40,000 to 70,000G. The hotel will be rebuilt to two-thirds of the original's size, including the first portion of the central turret, and will feature both the hair ornament on top and green circular objects resembling E. Gadd's glasses.
 * Rank C: Finish the game with 0 to 40,000G. The hotel will only be rebuilt up to the first five stories, with only a modest tower in the middle with an ornament resembling E. Gadd's tuft of hair.

Trivia

 * A Japanese-language website and PDF brochure for the hotel was created as part of a marketing campaign for Luigi's Mansion 3.