thank you for playing and your detailed feedback!
If i end up doing a post jam version, an undo button is something ill definitely add. I also would redo most of the levels as I didnt have time to playtest, so many of the puzzles may have been too hard or esoteric. I want less puzzles that have 15 keys strewn about.
I'd also definitely redo a ton of art to make it look more clear.
Thank you for playing again!