Ah, that's a unique idea. I recently did a jam with the theme "Life in Two Dimensions," and this reminded me a bit of some of those entries, haha. Very cool.
Retry button not working as a bit sad because of how terrible I was at this, but I see you're already aware of that, so no use worrying about that. Controls sometimes felt a little weird, floaty maybe? Mainly just the jump seemed to sometimes be very high and sort of inconsistent. I though maybe there was a wall jump or something, but I couldn't really understand it. It's also quite possible I was just missing something.
I see you've got plans to keep working on this, which I think is the right call in this case! That concept has crazy potential. Good work!