Damn thanks a lot for this feedback! I really appreciate you taking this much time to analyse the game. The original idea was that the bullet make you unstable upon hit, and you're able to regain stability (somehow, I hadn't planned that part out yet), when I realized that I had completely forgotten to implement the theme it was obviously a bit too late to change the entire system lmao.
I think you're very right about the bullet direction, I should've thought it out better and it should be more obvious where the bullets are moving and why. I'll fix it as soon as the jam is over!