This one has a lot of love in it (pun intended).
I really enjoyed a lot about this title. The presentation of the levels against the black void actually worked quite well, even though I am usually not a fan of this approach. I really liked your character model crumbling as they take damage or as time passes - this was really effective. I liked the difficulty level of the puzzles, and I enjoyed the overall flow of the levels.
My main feedback would be to improve on the character controller, and improve on 'bounds' of the levels to deal with the edge/niche cases of getting stuck/out of bounds/locking out puzzles. The camera was a little frustrating, though manageable. A lot of my feedback is honestly just because it was a 4 day jam, and these things are to be expected. Overall lovely little game.
Our team has a game in the jam also https://itch.io/jam/feedback-quest-8-indiegames-x-indie-streamers/rate/3773442 , if you have the time go and drop us a line!
Thanks mate, good work!