Exploring the haunted corridors of the Last Resort hotel in Luigi's Mansion 3 offers players plenty of charming puzzles and hidden secrets to uncover. Among the most rewarding challenges on the upper floors is tracking down the six unique collectibles hidden across the fitness center on Floor 13. Snagging all these glittering treasures requires a combination of sharp observation and a clever mastery of Luigi's full ghost-hunting toolkit.

Revealing Secrets in the Elevator Lobby

Your search begins as soon as you step out of the elevator and enter the main lobby area of the fitness center. On the right side of the desk, you will notice a conspicuous water cooler that looks entirely ordinary at first glance. Using your Suction Shot on the nearby panel reveals a hidden electrical socket where you can plug in the Super Suction module. Activating this temporary upgrade allows you to completely tear away the back wall to uncover a hidden pool of water holding a glowing treasure.

Before leaving the lobby, investigate the circular emblem emblazoned directly on the center of the floor. Standing both Luigi and his gooey clone, Gooigi, directly on top of this emblem triggers a hidden mechanism in the ceiling. The pressure shifts open a ventilation gate above, dropping another colorful treasure directly into your hands.

Navigating the Locker Room and Showers

Moving deeper into the fitness facility brings you to the locker room area, which is filled with standard athletic equipment and environmental puzzles. In the corner of the room, look for a large soccer ball resting near the rows of metal storage units. Aim your Poltergust carefully and launch the sports ball directly at the sign hanging on the wall to dislodge a hidden prize. This quick physics challenge reward ensures thorough explorers do not leave empty-handed.

Next, make your way into the shower room where thick steam and running water can obscure your vision. Turn your vacuum functions on to clear the local vapor clouds and use Gooigi to slide through the floor grates safely. Underground, your gelatinous partner can turn a valve to drain the local pools, exposing a sparkling object trapped inside the drainage pipes.

Mastering the Gym Floor and Training Areas

The main training room contains rows of treadmills and exercise bikes that hold interactive secrets for resourceful ghost hunters. Step onto the central treadmill and begin running to activate the machine's electronic dashboard interface. Flashing your Strobulb light on the console at the exact right moment forces a hidden coin mechanism to open up. A spectral object will pop out of the display screen for you to collect immediately.

Finally, inspect the training weights lined up against the mirror wall in the rear of the studio. You will notice a strange gap in the reflection that does not match the physical layout of the room. Use your Dark-Light device on the empty space to materialize a hidden training bicycle, then hop on and pedal to claim your final prize.