Play Time | Graphics Comparison| New Features
★ Mansion Guides | Interactive Maps | 100%
☆ Locations: Gems | Boos | Ghosts | Gold Bones
★ ScareScraper Multiplayer Guide | Solo?!
┗ High Score Boards ▶︎ Missions | SkyScraper
Treacherous Mansion is the fifth mansion in Luigi's Mansion 2 HD (Dark Moon). See a map of Treacherous Mansion, a list of missions, Secret Door levels, as well as the locations of all collectible Boos and Gems found in this mansion!
| Previous Mansion | Current Mansion | Next Mansion | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Secret Mine | Treacherous Mansion | King Boo's Illusion | ||||||||||||||||||
| E-1 | E-2 | E-3 | E-4 | E-5 | E-Boss | E-Bonus | ||||||||||||||
| ★ Press the icons on the right side to show collectibles and points of interest on the map. ★ Toggle the Full On icon to expand the map. |
| Icon | How to Use |
|---|---|
 | Show Names This button reveals the Name of every icon currently shown. |
 | Show Pins This button will toggle between showing and hiding all the pins which you have already marked as acquired. |
 | Fullscreen This button will change the map display to fill the screen. |
 | Search Mode Toggle This button will display a searchbar which you can use to search for an individual pin by its name. |
 | Icon Mode Toggle In Search Mode, this button will toggle you back to Icon Mode, removing the search bar and displaying the icons again. |
 | All Pins This button is shown along with the Icons on the right when there are over 6 types of pins. Click it for a full selection of all available pin types. |
 | Counter Tracks the number of pins you have of a certain type. The pin type shown is set to the page and currently cannot be changed; however, all pin type counters can be viewed by clicking the checklist icon on the right side. |
 | View All Counters This icon is found on the right side of the Counter. When a map has more than one pin type, click this icon to see Counters for all pin types. |
 | Zoom In / Zoom Out This icon is found on the top left side of the map. You can press these buttons, or use your scroll wheel while hovering, to Zoom In and Out of the interactive map. |
| All Collectibles | |
|---|---|
| Boo Locations | Gem Locations |
| ✔️ | Gem | Image | Mission | Also Found In | How to Find |
|---|---|---|---|---|---|
 Circle Diamond
|
 |
E-1 Front-Door Key | E-1, Bonus |
Room: Underground Lab Head into the Underground Lab, defeat all the enemies and the Boo, use the iron helmet to shoot the glass bottle up on the wall on the east, and grab the Circle Diamond as it drops down. |
|
 Triangle Diamond
|
 |
E-1 Front-Door Key | E-1, Bonus |
Room: Haunted Catacombs Head into the Haunted Catacombs past the Underground Lab, head towards the very northeast corner, and use the Dark-Light Device on the painting on the wall to grab a flaming web ball. Then head towards the west until you find a web and burn it down to obtain the Triangle Diamond hidden behind. |
|
 Rectangle Diamond
|
 |
E-1 Front-Door Key | E-1, Bonus |
Room: Cliffside Head towards Cliffside through the door on the southeast corner in Haunted Catacombs. Then use the Poltergust to suck the Rectangle Diamong hanging on a vine. |
|
 Football Diamond
|
 |
E-2 Double Trouble | E-2 to E-3, E-5, Bonus |
Room: Front Entrance At the Front Entrance, use the Dark-Light Device to reveal the statue on the right side at the bottom of the stairs, and then pull the chain to reveal the secret vault. Once you open the vault and defeat all the enemies, you can obtain the Football Diamond inside. |
|
 Drop Diamond
|
 |
E-2 Double Trouble | E-2 to E-3, E-5, Bonus |
Room: Restrooms In Grand East, use the Dark-Light Device to reveal a hidden door in the west area. The door will lead you to Restrooms, and once you pull the chain to flush the toilet, it will burst out the Drop Diamond. |
|
 Stone Diamond
|
 |
E-2 Double Trouble | E-2, Bonus |
Room: Gargoyle Roof On the Gargoyle Roof, suck up shooting stars from the sky and the gargoyles to complete the star constellation in the sky. Once the star constellation is completed, it will drop the Stone Diamond on the roof. |
|
 Rhombus Diamond
|
 |
E-2 Double Trouble | E-2 to E-3, E-5, Bonus |
Room: Anceint Exhibit Once you've got a bucket of water from Jungle Exhibit, head towards the Ancient Exhibit. In the Ancient Exhibit, bring the bucket of water on the upper floor through the cave in the east, and then water the flower. Then use the Strobulb on the flower to make it drop the Rhombus Diamond. |
|
 Star Diamond
|
 |
E-3 A Train to Catch | E-3, E-5, Bonus |
Room: Aviation Exhibit Head into the Aviation Room, pull down the heavy bags tied to the hot air balloon, defeat all the enemies, and the Star Diamond will drop from the hot air balloon. |
|
 Octagon Diamond
|
 |
E-3 A Train to Catch | E-3, E-5, Bonus |
Room: Nautical Exhibit Once you've got a bucket of water from Jungle Exhibit, head towards the Nautical Exhibit. In the Nautical Exhibit, place the bucket of water opposite the steering wheel on the upper right to reveal a hidden room. In the hidden room, open the chest on the end of the ship to obtain the Octagon Diamond. |
|
 Oval Diamond
|
 |
E-3 A Train to Catch | E-3, E-5, Bonus |
Room: Dark Age Exhibit Using your Poltergust, suck up a bulb from Study to float on the upper right platform in Front Entrance and get the book in the gargoyle's mouth. Suck the book into the Dark Age Exhibit and place it on the bookshelf in the middle, and then the Oval Diamond will be revealed. |
|
 Spindle Diamond
|
 |
E-3 A Train to Catch | E-3 |
Room: Jungle Exhibit Using your Poltergust, suck up a bulb from Study and bring it into the Jungle Exhibit. In the Jungle Exhibit, use the bulb to float on the upper left platform and then suck the golden bulb. After collecting all the coins by using the golden bulb, head to the upper right platform to open the chest and obtain the Spindle Diamond. |
|
 Coffin Diamond
|
 |
E-3 A Train to Catch | E-3 |
Room: Ice Age Exhibit Using your Poltergust, suck up a bulb from Study and bring it into the Ice Age Exhibit. In the Ice Age Exhibit, use the bulb to float on the upper left platform and then suck the golden bulb. After collecting all the coins by using the golden bulb, head back to the upper left platform to open the chest and obtain the Coffin Diamond. |
|
 Mushroom Diamond
|
 |
E-3 A Train to Catch | E-3, E-5, Bonus |
Room: Train Exhibit Head into the Train Exhibit, defeat all the enemies, use the Dark-Light Device to reveal a hidden rail track in the middle, then ride the train around the room, and once the train stops, you have already obtained the Mushroom Diamond. |
Gem Locations: How to Find All Gems
| ✔️ | Mission | Boo Name | HP | How to Find |
|---|---|---|---|---|
| E-1 Front-Door Key |
 |
40 | Room: Underground Lab Enter the underground lab, defeat all the enemies inside, turn the valve on the north wall to shock the armor on the table, and the Boo will appear. |
|
| E-2 Double Trouble |
 |
35 | Room: Inner Courtyard Enter the inner courtyard, shoot the toads in the cages of the statue in the middle of the area, and a Boo will appear. |
|
| E-3 A Train to Catch |
 |
40 | Room: Dark Age Exhibit Get a bulb from the study portal in the upper right of the front entrance, use the bulb to float on the upper floor of the dark age exhibit, use the golden bulb on the upper right platform, collect the coins, and open the chest afterwards, and a Boo will appear. |
|
| E-4 Ambush Maneuver |
 |
Room: Train Exhibit Enter the train exhibit and use the Dark-Light Device on the north side, where the train engine originally was. Suck up all the spirit balls to reveal the Boo. |
||
| E-5 Paranormal Chaos |
 |
40 | Room: Aviation Exhibit Enter the aviation exhibit and use the Dark-Light Device in the middle of the room, where the hot air balloon originally was. Suck up all the spirit balls to reveal the Boo. |
All Boo Locations: Where to Find All Boos
| Mission | Location | How to Beat | Rewards |
|---|---|---|---|
| E-1 Front-Door Key | Haunted Catacombs |
 Collect all the red coins within the time limit. |
Treasure |
| E-2 Double Trouble | Kitchen |
 Collect all the red coins within the time limit. |
Treasure |
All Secret Door Locations and Rewards
| Treacherous Mansion Missions | ||
|---|---|---|
| E-1 | E-2 | E-3 |
| E-4 | E-5 | Boss |
| Bonus Mission | ||
| E-1 Front-Door Key | |
|---|---|
| Goal | Use the Front-Door Key to open the Front Entrance of the Treacherous Mansion. Once inside, start looking for the Dark Moon piece. Follow the Polterpup, and recover the Front-Door Key. |
| Boo Location | Underground Lab |
| Obtainable Gems | ・Circle Diamond ・Triangle Diamond ・Rectangle Diamond |
E-1 Front-Door Key Walkthrough
| E-2 Double Trouble | |
|---|---|
| Goal | Search the main floor of the Treacherous Mansion for the Toad assistant, and bring him back to the Bunker. It turns out E. Gadd assigned two Toad assistants to take care of the exhibits. Find the other Toad, and send both Toads back to the Bunker. |
| Boo Location | Inner Courtyard |
| Obtainable Gems | ・Football Diamond ・Drop Diamond ・Stone Diamond ・Rhombus Diamond |
E-2 Double Trouble Walkthrough
| E-3 A Train to Catch | |
|---|---|
| Goal | Use the makeshift rotor to activate the stairwell in the Inner Courtyard. Then rush to the Train Exhibit and rescue Mario. |
| Boo Location | Dark Age Exhibit |
| Obtainable Gems | ・Star Diamond ・Octagon Diamond ・Oval Diamond ・Spindle Diamond ・Coffin Diamond ・Mushroom Diamond |
E-3 A Train to Catch Walkthrough
| E-4 Ambush Maneuver | |
|---|---|
| Goal | King Boo seems to be up to something inside the Train Exhibit. Ambush him while he's distracted. The miniature model in the Train Exhibit was a trick! Don't let Big Boo get the best of you. |
| Boo Location | Train Exhibit |
E-4 Ambush Maneuver Walkthrough
| E-5 Paranormal Chaos | |
|---|---|
| Goal | Reach the Terrace, and discover the source of the strong paranormal signal. King Boo has sent a horde of ghosts to start a paranormal riot. Capture all of the ghosts before they become too powerful to be stopped! |
| Boo Location | Aviation Exhibit |
E-5 Paranormal Chaos Walkthrough
| Stop the Knightmare | |
|---|---|
| Goal | The portal has brought you to an unknown location! Look for the possessor ghost and the final piece of the Dark Moon. |
Stop the Knightmare Walkthrough
| Terrifying Invasion | |
|---|---|
| Goal | Ghosts are invading the Treacherous Mansion! Go to the outbreak points and capture all the ghosts at each location in order to prevent a paranormal catastrophe. |
Terrifying Invasion Walkthrough
| Post-Game Guide | ||
|---|---|---|
| ScareScraper Guide | Ending and Post-Game Content | 100% Checklist |
Treacherous Mansion Gems and Missions Guide
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