Good points:
- Nice use of polygon art
- Interesting use of growing/shrinking mechanic - that usually pops up in amoeba action games, not so much third person shooters
Bad points:
- All the stuff that wasn't finished -- collision detection, deaths etc
- It's a little weird that the character fires in the direction they're moving, rather than the direction the player is aimed at
Is that music your original property?
Good stuff, definitely potential. :D