This game has a really unique feel / look to it and I think you've established an incredibly distinct atmosphere with this game / world. The mapping is nice, but feels a little too tidy, if that makes sense? Looking at the exterior of the building, I can't help but think of walking through red clay years ago... And the fact that the stains are STILL on my shoes now. For the indoor / lab-esque areas to still have perfectly clean white floors means none of that got tracked inside or blown in. I know that probably feels like a weird thing for my comment to focus on, but it was something that really stuck out to me for some reason.
I enjoyed your game play mechanics for the most part. Sometimes, it wasn't perfect and I definitely was a little frustrated fighting the boss, but I commend the effort that had to go into creating a system like this in an engine that is very much not made for it.
I think the overall presentation of your game is very coherent and you have a great direction with this -- I hope you'll add more to it post-contest! :)