This is actually quite nice! Pretty sure I've never seen a room escape like this, so I am more than thrilled. The graphics, especially that Windows 98 style hit me the most, as that was pretty much my childhood using a computer. The puzzle is also quite well designed with quite a lot of traps if you aren't paying attention. Overall, this is very nice and I do like it a lot! I do think the game has a lot of text, and you clearly spend a lot of time writing all of those, but I end up not reading all of them and just merely relying upon the escape note you provided. Thank god the notes don't reset when you retry the game.
For a bit of criticism, I'd really want to change the settings after you start the game, especially the mouse sensitivity settings. I myself can get dizzy very easily and would always prefer a slower mouse sensitivity. It's always good to be able to change that during the entirety of the game, as you really need testing via gameplay to select the best sensitivity. I'd also say the game relies too much on memorisation, and as a person who is bad at remembering things, I need to play the game a second time to remember where the security room is. Don't know how to solve this though to be honest, as this is one of the core mechanics of the game. Hmmm...
Anyway, with all that said, this is still a great entry! Well