Great idea to keep your shot prices. I like the risk/reward element of having random bullets spinning around the orbit to help you.
The game feels quite challenging right now though. The 1-shot kill mechanic is pretty unforgiving, and the controls and camera could use a bit more polish to feel smoother.
Great job overall. Also love the shader work. Did you use Quibli for the shader? I was thinking of trying that too, would you recommend it?