Okay, I tried the game. It's great, but in my opinion the camera tilt when you move sideways is way too extreme, to the point of being very disorientating. That's just my feedback, maybe it won't bother other people.
The projectile particles might look better if you turn the color intensity up, or set the color to a value like 2,2,0.25. That will allow the color to ramp up so the "hot spots" are white and the periphery area is the color you want.