Sliding Down
According to Toad, ghosts (even Boos!) have settled in the old mine. I hope this recording here tells us more…
Go outside and turn on the grill. With the hot chicken you walk down the stairs and melt the picture free. Let the gem appear and go back in. Make the chair next to the door visible again and then vacuum up the Boo.
Use the elevator and walk over the bridge. Choose the door on the left and you will end up in the tunnel crossing. Flash the ring with which you can teleport yourself. Use this and get the key in the ice block. Teleport back with the key and melt it on the lantern. You can open the next door.
Hold the ice slide right to get the key. Slide again and this time keep your left to get the gem. Examine the barrel and turn the wings so that the door appears.
Here you vacuum on a wooden block and let the ice block melt. The spirits are now storming in and must be captured. Close the window and then uncover the door completely.
Very cold here
In the elevator shaft you drive down. Move down at the pull cord and move back up. In the shaft you will now find a gem. Then examine the next wheel below and you get to the coward’s claw. Here is a passageway at the back (the picture is a mirror).
Open the door and you’re in the Deep Hall. Look through the pit for the ghosts to appear. Soak them up and go right to the excavation pit. Pull the rope so that the treadmill moves. Next turn on the wheel so that a stone lands on the treadmill. Return and hold the stone over the fire. Then shoot him to the ceiling and get the gem. After that, melt the block of ice to the right of the door and pull on both booms to clear the door.
In the coal quarry, turn on the fire tap and then light the piece of wood. On the left you can melt the coal bags like this. Get a piece of charcoal, light it and shoot it at the key.
Strong spirits
Again in the Deep Hall you vacuum up the ghosts and then open the door. Look here into the right crystal so that the spirits come free. These are much stronger but also easily captured. If you have them all in the Poltergust, the mission is over.