Unlock trap door is an objective in the Story Mission, Lair of the Harpy in Borderlands 3
Walkthrough[edit]
- In the projection booth, after the looting, go to the front middle where you can see the control panel.
- On the ground just in front of the control panel is the clue to the puzzle you need to solve.
- Begin by pressing the button on the right-hand side of the control panel to begin the puzzle.
- There are 3 pull levers that are used: Left, Center, and Right. Each have 3 props attached to them.
- The Right Lever (right prop): Jakobs,
- The Middle Lever (background): Ruins, Jungle, Pandora
- The Left Lever: Psycho, Typhon DeLeon
- The solution is to have the Typhon DeLeon, Ruins background (V-shaped ravine in middle), and Vault Arch.
- Have this pre-set in place then go back to the button you started this puzzle with.
- Press it to open a trap door in the middle of the stage.