Very cool. Like how you can customize your character. Add another level please.

It's a good concept, and I can see it going places. A few things though;
Add a larger variety of weapons.
Have some sort of reload system, every six or seven shots you reload (for the magnum and Desert Eagle, respectively.)
Fix it so it says "You levelup..." it should say something like, "You've leveled up!"
Improve the front menu so it's a bit more smooth, like the actual game.