I entered the solution to the access panel puzzle as shown in the walkthrough and nothing happened.
Besides that, I don't get why the fire alarm in the room would need amplifying to hear it. Those tend to be pretty loud, and if the doors and walls are thick enough to block the sound, then they'd be thick enough to prevent the glass method from working.
With the access panel puzzle, once you've put in your solution you need to keep pressing down until the little enter button on the bottom is highlighted (that lets you enter your solution, it will tell you if it's denied or not). I'll update the walkthrough to say that.
Yeah, it's probably not the most well thought out puzzle, maybe something like a hearing device (stethoscope?) might have been better. I was thinking of those old cartoons where the character uses a glass cup to hear whats on the other side.
Thanks for checking it out though!
To clarify, the part that I have trouble believing is that a hearing device would be needed to hear that sound. If you think it's worth the trouble to change, I would recommend just changing which sound the main character needs to listen for. The use of a glass is fine, as that is actually something that spies used to do in real life.
