Drums are sweet :D + 10
Very low volume - 1 :(
No bass - 1 :(
I like the overall melody. It's very very catchy. Reminds me of a japenesse top-down shooter. (Oh so fun :D) The drums compliment it very well, but I don't hear much bass, let alone, much at all =P
Anyways, I like it, and I think you could make it much better by simply raising the volume.
Good job 8/10