well done!
For a Twelve year old First Flash this was pretty damn good! The Graphics were good and the animation smooth. The Concept was a good one too!
However i felt that the game play got a bit repetitive and bland, maybe in a future version or new flash you could add power-ups, different weapons, different enemies A reload function (where you actually have to press the button to reload)and maybe new backgrounds!
But Apart from that a really good first flash, Well Done!