You better believe I played all the way to the end because that was really fun! It felt a lot like Viscera Cleanup Detail and Power Washing Simulator and I loved it. Heck, if it wasn't for the spooky eyes and spooky ambience I'd feel downright cozy.
Great graphics, and loved the sound effects. There were also a bunch of little things I appreciated, like the custom loading screen and elevator music.
I guess my only feedback is that the game window in the browser page felt massive. Like, it took up my entire screen! Also I was able to see my mouse while in the first person camera; unfortunately, this meant if my mouse hit the border of my screen I wouldn't be able to turn in that direction anymore.
Overall though, I really enjoyed this!