This game was pretty intense. The sounds of the chainsaw had me at the edge of my seat and the changing corridors added a sense of desperation to escape. With every turn, I expected the killer to be waiting for me. The style of graphics gave the game a dark and gritty look and the jumpscares were well placed without being over the top.
Just a couple of critiques: I ran into a bit of a problem with the vent towards the end of the game - sometimes it would fall in a way that blocked my access to the key and I couldn't move the vent to reach it. I also found that the sprint bar was a bit on the short side, especially when it came to running for my life to get out of the cells.
All-in-all, I enjoyed your game - it was a nice short horror experience.