You have to finish this, man.
Also, it needs play/replay buttons so that it doesn't just start without the player there. A pause button and music option will also add a nice touch to it. Finally, a larger range for aiming would help as well (allow it to either make 180-360 degrees without switching directions. That covers everything you would need to finish this and get good results. To get awesome results, add more animation (as in feet moving, stabbing motions, blood flying out when you're hit, and a few more sound fx). I know it looks like a lot, but it will be worth it.
I really want to play a full version of this!