Hey! Really nice game, the audio and the graphics are really awesome, you did an amazing job!
The only thing you might want to consider is the game difficulty. Did you managed to beat the guy? It was hard for me, and the fact that his bullets go through the walls made it even harder.
However, other than that you made a really nice looking game! You did very well!
I would love to have you playing mine too, if you don't mind of course! ^_^