Luigi's Mansion: Dark Moon -- Gloomy Manor - A-4 Visual Tricks

Gadd shows us a floating purple ball caled a Spirit Ball, which can cause illusions. There are a bunch floating around Gloomy Manor. This explains why some objects, like the suits of armor in the Guard Hall vanished. Gadd says they're still there and has an attachment for the Poltergust 5000 to help us see them again. It's called the Dark-Light Device and it can break illusions. Unfortunately, it, too, was left in the Lab. We must retrieve it.

Entrance
We land in the Entrance, where a suit of armor is missing. It's only invisible, but we can stand where it should be. It's a very convincing illusion.

Garage
There's a Gold Greenie in the car. Vacuum it for lots of cash.

Guard Hall
The suits of armor have returned.

Foyer
There's money and a gold bone in the drawers and vases.

Common Hall
When you approach the door to the Lab, the door vanishes entirely. Even though it's only an illusion, you can't enter the Lab from here. Gadd calls us when we try to return to the Foyer. He says to find another way into the room. Only other way is to drop in from above.

Foyer
Another Hider is messing with the stairs. A Slammer and three more Hiders join in on the fun. Take care of them and go through the Master Hall to the Parlor.

Parlor
Approach the fireplace or explore the room a while and the fire will go out. A few Spirit Balls will fly into the grandfather clock and make it disappear. Walk into the fireplace and drop down into the Lab.

Lab
The Dark-Light Device is in the back right corner. Before you can grab it, a Greenie with sunglasses takes it and flies into the chalkboard. Spin the chalkboard to make it appear. The Greenies aren't affected by the Strobulb while they're wearing shades, so vacuum them off. Once you defeat all three of them, you can get the Dark-Light Device. Gadd says that whoever has been releasing the Spirit Balls is able to avoid detection on the Parascope. We can use the Dark-Light Device using (Y). It has a limit to how long you can use it, so use it briefly to find out what things are illusions, then use it on one object to break the illusion and make the object appear. Spirit Balls will appear. Vacuum them to completely restore the object. The restored object may reward you. There's a safe, toolbox, and door that need restoring here. We can leave now. We have to find whoever's releasing the Spirit Balls on our own. Whoever they are, they have a creepy laugh.

Common Hall
The Dark-Light Device can help with other things as well. If you go to the back of the hall, you'll see a tan-colored picture of a key. Use the Dark-Light Device to make the key come out of the picture.

Mudroom Exterior
Restore the doghouse and check it out to be warped to a new area. There are two treasure chests and a screen with a timer. Find the invisible chest and restore it to stop the timer. Open the last treasure chest to make it rain money.

Study
Use the Dark Light on the painting behind the closed curtains for an amethyst.

Foyer
In front of the double doors at the top of the stairs is a Boo-shaped drawing visible only by the Dark Light.

Lobby
We still can't do anything about the elevator. There's an invisible door on the right wall. We can access a different part of the Balcony.

Balcony
There's a grill on the Balcony. Use the Strobulb to activate it. There are Spirit Balls in the Dining Room. Gadd says we're getting close.

Common Hall
Go around the corner, past the door covered in cobwebs, and use the Dark Light on the right wall for an invisible door. The key we found here opens it. This leads to the Patio.

Patio
Use the Strobulb on the flowers for money. Spin the merry-go-round for more money. Restore the left fountain for an amethyst. Restore the door on the left to reach the area Under the Stairs. There are gold spiders there. The other doors there lead to the Foyer behind the aquarium. Aim the vacuum at the aquarium for the star-shaped amethyst. There's an invisible statue of Gadd on the right. Restore, then spin the fan on it for a key. The key opens the door to the Kitchen from here.

Kitchen
A Greenie and a couple of Hiders are messing around in the Kitchen. Once you've dealt with them, use the dumbwaiter to reach the Dining Room. If you go into the Library from the Kitchen, restore the globe, then pick it up for an amethyst.

Dining Room
A Boo is in the Dining Room, releasing the Spirit Balls. It makes the table disappear, then flies out the window. Restore the china cabinet and the table. This upsets the Boo. Find it with the Dark Light, then pull its tongue with the Poltergust 5000. It will bounce all over the room, losing all its HP as well as some coins. Vacuum it up to finish it off. Gadd calls, surprised that there's a Boo in Evershade Valley. We return to the lab.

Clear Time: 41:50 (I got a lot of treasure while exploring.)
Ghosts Captured: 15
Health Lost: 70
Treasure: 1472
Silver Rank

We've earned another upgrade. This one lets us use the Dark-Light Device longer. The next upgrade is at 7000 G. Gadd will store the Boo we caught in a Boo Canister in the Vault. We're not sure why it was in Evershade Valley in the first place, but we'll find out sooner or later.