Awesome!
I've never seen a game like this..! The animation is top notch, and the sounds are really appropriate for this type of action. A small detail might be that the controls are very awkward. What game uses "s" to jump? At least remap it to spacebar. Maybe make the fire button the shift key? Then you'd be able to move with the arrow keys, have the nice large space bar key right there for a quick jump, and have the (right) shift key right in between all of the keys for easier firing. It's just an idea, but I think it would lower the unnecessary difficulty level (solely brought about by the control layout). Other than that, it's a great game...! I love the katana slash when you get close-up, a variety of attacks in a game are always good. And the numerous death animations for the baddies keep the action fresh! Awesome.