Pretty cool concept, and I like the work you did with the camera and the puzzles. There was a moment that I almost thought I softlocked the game but thankfully there was a restart key. It's impressive how there are so many levels each with their own different puzzles, and how there were many little "Eureka" moments for them.
The boss was tough, a little bit overwhelming, but I eventually beat it. It can be a little unforgiving because it's "one hit and you die". Its mechanics are super cool otherwise, so I think reducing the boss health would be a nice way of smoothing the experience.
Good job with this one! I recorded my playthrough, check it out: