This is exactly the right kind of quirky and weird for me - I loved the style, visuals and theme a lot :)
I agree that shrinking was tricky - this is mostly because of me being hardwired to expect "focus"/"alt mode" in bullet hell games making you slower, Touhou-style, so there's nothing wrong with the game itself! Patterns were fun and hard, I kept retrying to improve.
Needless to say, the inflating/deflating economy and the balloon MC make perfect sense for the jam's theme.