Good game.
I'm gonna have to be a bit of an ass here and list a load of stuff that could be better. but before i do i just want you to know that everything about the game in general is quite good. (apart from the soundtrack...)
1. The soundtrack:
The seams in are quite obvious so every time the track loops round we know about it. Seams are a right pain in the ass i'll give you that but a little time aside to get the loop nice and smooth will make a lot of difference.
2. Damage representation:
Alright, so you have the damage bar at the top but it'd be a lot easier for us to know what hurts us if a little symbol appeared next to the character, or the character glowed a certain colour when damage was recieved.
3. Graphics:
It's all slightly jeuvenile. A little more effort put into the asthetics would go a long way. I understand though if this is just your style, in which case ignore i said this. But even if it is your style a little more effort put into the back grounds would go down well.
4. Plot.
How about a story. Not necessary but always appreciated.
5. Expansion and developement.
This maybe a bit more complicated that you intended but there's no reason why the character we play couldn't power up as the game progresses. Points for kills and then weapons, armour and new moves for points. Just a thought.
Anyway, don't let all the detract from how good i actually think this game is and i look forward to more levels from you.
3/5