I'm gonna riot if this game doesn't win, it's super creative and I felt engaged from start to finish. 10/10
My only 2 comments are that 1. Maybe swap level 4 & 5 (I was stuck on level 4 embarrassingly long because I didn't understand that keys can fall down with gravity, which gets explained really well in level 5) and 2. Closing the loop on the block feels difficult.
Overall, I'd play a full game of this. Just amazing work for 96 hours!!