This is such a cool concept. I wondered why it was so tiny I restarted it a few times and then played for a while and all became clear! I think there might be a way to hint to the player that everything is OK small, without spoiling the reveal.
A few balls got stuck, a few fell out of the stage, but no big deal.
I’d have liked a way to speed things up, because I didn’t get very far (4 areas) in ~15/20 minutes.
Nice work!