Amazing. I personally love the aesthetic you went with the grungy, mostly mute colors and dark ambient. I think the horror here comes from the player quickly running out of time and having to make split-second decisions, which is pretty cool. The only criticism I can give is that the blood drips are kinda random so the player can't consistently plan out a route, also the difficulty is a bit messed up. Level 3 was hard, but level 4, 5 and 6 were easy. I also got the special levels, and yeah, those were hard as nails. Overall, simple but good. With more detailed graphics and more levels I could easily see this get front paged.
ps. died 433 times lol