Honestly this puzzle game was really, really well done - the puzzle mechanics were so unique, and the core concept of replaying and trying again with the meta-knowledge of a past run was such a cool concept.
My only critique would be the platforming was a little slidy at times, but that could very much be a skill issue on my end. The game felt really immersive, and the soundtrack was awesome to boot. It felt like even when I was failing, I was learning and making progress.
When I first started off, it was slow - I immediately got stuck at the very beginning, unsure how to progress, shackled to the form of a duck. Then I fucked up, died, and respawned a human. It clicked. Suddenly - I got the game. And the moment it clicked into place, I immediately was having a blast. The music motif puzzle was great, and the entire flow from start to finish was a joy - even when I got stuck, I felt like I was able to push through and figure it out.
This is such a unique vibed game, and you pulled it off expertly. This is the kind of thing you'd expect as the first area or level of a long-form indie puzzle-exploration game.