Exploring The Great Stage on the fourth floor of Luigi's Mansion 3 presents players with theatrical puzzles and cleverly hidden secrets. Uncovering all six unique gems on 4F requires a mix of creative tool usage, teamwork with Gooigi, and returning later with upgraded equipment. Understanding where each gemstone resides ensures you can complete your hotel collection without missing key steps.
Elevator Lobby Gems and Puzzles
The main elevator hall contains two accessible collectibles right when you step onto the fourth floor. Near the center of the lobby stands a large brass tuba that reacts to your Poltergust equipment. By having Luigi blow air into the instrument while Gooigi uses suction at the top opening, you can dislodge the purple gem.
Heading further to the west side of the same hallway reveals a brightly lit popcorn machine. To retrieve the yellow gem trapped inside, repeatedly flash the machine's green light using your Strobulb. After three successful flashes, the machine will burst open and spill popcorn along with your reward.
Restroom and Concession Stand Discoveries
Heading into the women's restroom on the left side of the floor leads to another secret. Shine your Dark-Light Device near the right side of the sink area to reveal a missing faucet. Turning the restored faucet causes a Gem Goob to appear, which drops the white gem once defeated.
The men's restroom on the right side conceals access to a hidden concession stand. Send Gooigi through the pipe grate to pull the flush cord and rotate the wall mechanism. Once inside the secret room, vacuum the row of glass bottles from left to right to play a melody and open the safe containing the blue gem.
Stage and Dressing Room Secrets
Navigating to the left of the main stage brings you into the musician's private dressing room. Inside, you will notice a grand piano missing several of its key components. Using the Dark-Light Device on the instrument restores the keys, allowing Luigi to interact with it and claim the red gem.
To learn more about game mechanics and hotel secrets, check out our guide resources for updated strategies. Taking time to inspect every room thoroughly guarantees you will not overlook subtle environmental clues.
Unlocking the Final Green Gem
The green gem on this floor cannot be collected during your initial visit to The Great Stage. You must progress further in the main story until you unlock the Super Suction upgrade for the Poltergust G-00. Returning to the auditorium stage allows you to perform a Burst move on the floor panel to reveal a heavy-duty power plug.
Plugging in and activating Super Suction clears away the stage backdrop and reveals a hidden television set. Flash the TV with your Strobulb to teleport into the upper VIP balcony seats. From there, vacuuming the nearby popcorn bucket releases the final green gem to finish 4F.
