Thanks for such insightfull feedback!
I very much agree that more work could be done to game balance as requests can put you into a very hard or even an impossible position. I'm currently thinking on how to redesign the difficulty curve to adapt to players score.
The concept of eating the sweets is so cool and fitting to the game that I'll probably add it to the game in a postjam update!
I'm sorry that you've run into scaling issues as I haven't really considered scaling the game window. I've also noticed some issues with scaling on retina devices so I'm thinking of adding a fullscreen mode which supports autoscaling to the game so that it always fits.