Pretty good... considering the artwork.
This is a good action game, don't get me wrong, but you're art work reminds me of recycled anime shit I find on the internet.
First, it took me awhile to figure out that our hero is a woman. You gave her the anatomy of a man, and short hair. The only thing that gave this away was the little line on her chest that represented a breast. Based on how she dressed I can only figure that the character I'm playing as is a dyke.
A good piece of advide would be to take an anatomy class. This will improve your figure drawings greatly.
The artwork aside it's a good action game that's fun. I hope to see a sequal. And be sure to use more ninja's. Ninja's are cool.