Luigi's Mansion 3

Luigi's Mansion 3 is a tentatively-named upcoming game in the Luigi's Mansion series for the Nintendo Switch, set to release sometime in 2019. Unlike previous games in the series, the game takes place in a haunted hotel rather than an actual mansion.

Story
Luigi, Mario, Princess Peach, and various Toads are invited to a hotel. Soon after they arrive, everyone but Luigi goes missing, having been turned into paintings by King Boo. To save them, Luigi has to navigate the many floors of the hotel with the help of Professor Elvin Gadd, using a new Poltergust called the Poltergust G-00.

Gameplay
Luigi's Mansion 3 plays much like the previous entry in the series, Luigi's Mansion: Dark Moon. The Poltergust G-00 retains the basic qualities of the previous vacuums, as well as the Strobulb item and the Dark-Light Device. It also introduces new abilities, such as slamming ghosts on the ground or into each other, firing a grabable plunger with the Suction Shot, and creating a shockwave or being lifted up with Burst.

Gooigi, introduced in the Nintendo 3DS remake of the first Luigi's Mansion, reappears and is stored in the Poltergust G-00. Gooigi can be called upon to pass obstacles Luigi cannot, such as spikes and bars. However, it is weak to fire and water, and will lose all its health immediately if it comes into contact with them. Luigi and Gooigi cannot be controlled at the same time in single-player, but Gooigi can be controlled by a second player with the second Joy-Con controller.

The ScareScraper from Luigi's Mansion: Dark Moon also returns, allowing for eight-player multiplayer to clear floors as quickly as possible.

Known information

 * Blue ghosts similar to Hiders from Luigi's Mansion: Dark Moon appear, with each having 100 HP.
 * A Polterpup returns.
 * The debut trailer shows a tall mansion set in the mountains with a river, fog, trees, bats, and the full moon in the background. At the very top of the mansion, there is a purple gem.

Rooms

 * A trashed room with many pizza boxes and a suitcase with Mario's emblem.
 * A hallway with cleaning supplies and numbered doors.
 * A dining room with a lot of food, some on the ground.
 * A foyer with hanging pictures of Luigi, Mario, Toad, and Princess Peach, all having an "X" across them. In the back is a mail room, with a safe that needs a Strobulb flash to open.
 * A theater entrance, with a Hider-like ghost moving the rug underneath Luigi.
 * A garage similar to the one in Dark Moon, but with a red car rather than a blue one.

Trivia

 * The pizza boxes in the trashed room say "Since 1983", referencing Luigi's debut appearance in Mario Bros. for the Game & Watch.
 * The Poltergust G-00 was actually first revealed during Simon and Richter Belmont's reveal trailer for Super Smash Bros. Ultimate. It is also used for his grab, throws, and his Final Smash in the same game.