This is super satisfying. I really like the idea that you lose scale if you shoot. It really adds this extra layer of having to balance your playstyle. I was a bit confused at the beginning about how the scale affects the player, though. Maybe that could be something to add to the itch page.
Besides that, I think this is a super unique idea that I haven't seen so far.
It might be interesting to see what this can be turned into if you do plan to keep working on it. Good job!