Exploring the haunted hotel in Luigi's Mansion 3 requires keen observation, especially when tracking down every hidden collectible scattered across the floors. The Grand Lobby (1F) serves as the starting entrance for players, housing six distinct gem collectibles that require specific Poltergust abilities. Finding each gemstone in this area rewards thorough exploration and helps players move closer to achieving 100 percent completion.
Finding the White and Red Gems in the Lobby Area
The White Gem requires players to navigate to the west side of the lobby near the seating area. Using the Dark-Light device on the empty floor next to the sofa reveals a hidden couch and spawns a gem ghost that drops the white jewel upon defeat.
To obtain the Red Gem, players need to inspect the decorative desk area situated to the left of the central elevator. Firing a Suction Shot plunger at the circular design on the desk and pulling it open reveals the red jewel hidden inside.
Locating the Blue and Green Gems using Gooigi and Tools
Acquiring the Blue Gem involves walking up the left staircase and using the vacuum to roll back the carpet along the upper hallway. This action exposes a floor grate, allowing Gooigi to slip through to the lower level and knock the blue gem down to Luigi.
The Green Gem is straightforward to find near the primary elevator bank. Players simply need to shoot a plunger Suction Shot at the decorative potted plant to the right of the elevator doors to shatter it and collect the green jewel.
Unlocking the Purple and Yellow Gems in the Central Hall
The Purple Gem is concealed behind the main reception desk situated in the middle of the lobby. Head behind the counter and use the Strobulb flash on the green light terminal to activate the mechanism, which causes the mail slots to release the purple gem.
Retrieving the Yellow Gem demands teamwork between Luigi and his gooey counterpart, Gooigi. Position both characters on the dual pressure plates in the center floor area to lower the grand chandelier, then use both vacuums simultaneously to spin it until the yellow gem falls.
