Mannequin Free Perk

In the Destroyed version of the map, you'll find a SO₃ vial in the Yellow House Upstairs which you can interact with to pick up. Once obtained, head to the Green House kitchen and interact with the sink full of water to create a vial of H₂SO₄.

Once you have the vial of H₂SO₄, you can use it on three mannequins in the Normal version of the map, before needing to go back to the Destroyed version to refill it at the sink. You must pour this acid on all 12 mannequins in the Normal version of the map.

Mannequin Locations

Here are all 12 mannequin locations:

Once you've poured the acid on the final mannequin, teleport back to the Destroyed version of the map to find a Random Perk Power-Up in the same mannequin location for you to collect.