It took me over an hour but I beat it! This game is extremely punishing :')
Instant death and the stamina meter combine to create an extremely difficult and punishing experience. I thought the graphics and lighting and everything were really cool, and the stamina meter's one merit was that it forced me to stand around and take in the environment, get a mental model of the level that I'm playing, etc. Other than that, I think at least 50% of my playtime was just waiting for the stamina bar.
The final boss was very fun too, and the fact that most of it bypassed the stamina bar made it WAY more fun to play.
Great submission! I hope more people stick with the game and attempt to beat it. Overall I enjoyed my time with it but it was very very difficult. Thanks for submitting!