Early on in Gotham Knights, you’ll be in the lab of Dr. Kirk Langstrom. The place is absolutely covered in blood and is ripped apart, but it’s holding a secret entrance, just like the Bat Cave. You’ll have to do a couple of things to get into the secret area. Here’s exactly how to open the hidden door in Langstrom’s lab in Gotham Knights.

Open Langstrom’s Lab Hidden Door

This puzzle also serves as a tutorial for how you’ll work out future puzzles in Gotham Knights.

That is everything you need to know about exactly how to open the hidden door in Langstrom’s lab in Gotham Knights. With how early on this is, perhaps you’re interested in changing your chosen difficulty.

  • Upon arriving in Dr. Kirk Langstrom’s lab, you’ll once again want to enter AR Scan mode (hold down D-Pad) and look at the hidden mechanism that’s in the floor under the cabinet that was specifically shown. Walk over to the table on the left of the room and hold X (A on Xbox) to investigate. You will be able to interact with a movie poster, a calendar, a post-it note phone number, and a microwave. To get the hidden door open, you’ll need to connect two of these things. First, press Square/X on the post-it note. You’ll see a question mark with a check appear in the magnifying glass icon. Next, go to the far right of the table and press Square/X on the microwave. Once again, the question mark with a check icon will appear. The two should now be linked together with a white line between them. With that connection made, press Triangle/Y to solve the puzzle, and you can move on with the story.

You will be able to interact with a movie poster, a calendar, a post-it note phone number, and a microwave. To get the hidden door open, you’ll need to connect two of these things.

You’ll see a question mark with a check appear in the magnifying glass icon.

Once again, the question mark with a check icon will appear.

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