I liked the story and the idea of escaping the maze.

Some music would have set the mood and created a more tense atmosphere. It would have benefited greatly. I did not see much use of the sprint since walking was almost too fast.

Overall, I liked the concept.

I like the concept. As others said, the atmosphere would benefit greatly from some sound. It is quite difficult to navigate, but I really like how you used notes as a mechanic to help the player find their way. Nice job :)

I played for a while--I found the door, and then I found the key, and then I finally died, unable to find the door again. :(

I find it fascinating how easily I was able to see many of the same notes over and over, while the door room eluded me... the maze was really quite intricate, despite being rather small.

I'm not sure I understand what exactly the heartbeat mechanic is--I lasted for I believe at least ten or twenty minutes without dying, and I never pushed shift or space. I definitely had enough time to beat the game had I recalled the path to the door. 

But I do like how detailed the maze is. It's also a small thing, but I kind of like that the player's rotation is separate from their movement direction. It might seem kind of weird to have to rotate to read notes, but it's also kind of a fun mechanic--it makes the game, in some sense, more immersive.

Man, I feel totally terrified playing this. I found one key, and quickly found the door, found a script read it, became even more terrified. But when tried to read other scripts it would work. I started going around in circle and got claustrophobic and had to quit. Cool vibe.

I noticed someone else found the door but no key, I did the exact opposite. The game has a  good atmosphere and is definitely kind of spooky. Maybe add  some markers so the maze is a little easier to get through. I like the notes and the way the story is told. Good job!