Pretty good...
However, there are some problems that I encountered and things that I just didn't like.
Things I liked:
+Fluid, solid animation
+Good graphics
+Controls were very responsive
Things of the opposite nature:
-Through the Fire and Flames? Seriously? You should get something more fitting to the mood and please don't use anymore Dragon Force.
-Hit detection was poor. On the smaller asteroids I had to hit them nearly in the center of them to actually count a hit.
-The shots move too fast.
-The character moves a little too fast. Make it accelerate rather than hit a fast speed right away.
That's about it. I hope you make an update!