Some cool elements.
Cool artwork, narrative and music.
The control and movement was somewhat original and interesting. But killing those waves did get kinda boring after a while. Also some controls could be made a little smoother, like being able to jump while facing up, or crouching, instead of having to release the up/down key before jumping.
Liked it better than the average game I play though, so I'll give it a 10.
(p.s. I generally really prefer shooting platform games where you can aim with the mouse and the keyboard is just for movement... guess you decided not to do that though... shame :/ )