(I recorded my playthrough but due to some technical issues it did not record the gameplay properly, what did you use to make the game? it changes the monitor resolution)
This is actually the first backrooms game I have played, was not sure what to expect and went in blind. I think I got lucky and found the exit quite fast.
The recorder and screen effects looks really nice! The sound design is quite good but I think you could add some creature sounds as well, for example the hazmat suit creature could have some gas mask breathing audio as he gets closer.. would definitely make it scarier, right now its not as scary since it moves quite slow.
I am a sci-fi nerd and I loved the Pluto thing at the end, I would have loved more story surrounding the game and character. Regardless, its a good short experience, well done!