Awesome concept, great visuals and music and fluid controls.
It took me a while to get the hang of it, after a few sub-1000 score games, I managed to go above 6k and I was on track :)
I really love the way enemy projectiles are reflected, so I don't have to worry about shield curvature or anything, it just reverses their direction and BAM!
I might've been able to last a bit more if it was possible to reverse the thrusters and go backwards, and maybe instantly rotating the shields in fixed 120 degree steps with a different button might also be useful at times.
Are you planning on continuing development?