Not a bad game. I think the difficutly can ramp up a bit faster as I was barely challenged in the beginning. I also never used the dash, totally forgot about that mechanic :P I'm also not sure if it was needed as I think I moved as fast as all the enemies anyway.
Some sounds on enemies hitting you and a more hellish background would do a lot for the atmosphere.
I quit after scoring 69 which I think was nice enough :P
Great job !