Luigi's Mansion 3 B1 Gems All Locations And Collection Guide

Posted on 10 August 2026 | 52
News

Exploring the eerie depths of the Last Resort hotel in Next Level Games' spooky adventure rewards players with numerous hidden treasures. The basement floor serves as Luigi's initial hub where he recovers his trusty vacuum tool and begins his rescue mission. Finding every colorful jewel on this subterranean level requires keen observation and a proper mastery of your Poltergust G-00 upgrades.

Uncovering Secrets in the Garage Area

The main garage zone holds several hidden collectibles that players can easily miss during their frantic initial escape. To secure the white jewel, look for a luxurious car parked under a dusty cloth cover on the far left side of the room. Use the vacuum device to pull away the fabric cover, then flash your strobe light on the vehicle's trunk to release the prize.

Another valuable collectible rests inside a locked metal electrical box mounted on the back wall of the parking structure. Players must switch to Gooigi and walk directly through the metal mesh fence near the generator area to access this hidden spot. Launch a well-aimed plunger at the box door to yank it open, allowing you to flash the internal switch and claim your reward.

Navigating the Service Corridors and Elevator Hall

Moving out of the main parking area brings our cowardly hero into the narrow concrete hallways connecting the lower facility rooms. The red jewel is tucked away inside a specialized electrical housing unit positioned right next to the main laboratory doors. Switch your active character to Gooigi so you can slip through the ventilation pipes to drop down directly onto the hidden ledge above.

Further down the path, you will encounter the main elevator bank which holds its own distinct environmental puzzles. Look closely at the flooring directly in front of the elevator doors to spot an unusual circular grate pattern. Using the vacuum's powerful suction mechanism on this specific structural component will cause a hidden panel to rotate out of the floorboards.

Mastering the Maintenance Room Ventilation Puzzles

The final challenges on the basement level require a clever combination of both physical forces and spiritual upgrades. Inside the main maintenance hub, players will notice a suspicious piece of loose sheet metal blocking a gap in the far right wall. Fire a suction shot at the flat surface to pull down the barrier and reveal a hidden plumbing network.

Send your gooey counterpart into the newly exposed pipe system to navigate the slimy internal structure of the facility walls. You will need to carefully coordinate actions between characters to activate the pressure valves and redirect the dangerous water flow safely. Once the pathway clears completely, Gooigi can easily reach the final gemstone resting at the top of the hidden vertical chamber.