Generic
Unfortunatly, way to many of these games have come before yours, so it makes it really hard to stand out in the old arcade style shooter.
There seems to only be one song, it gets really annoying hearing the same thing over and over. Nevermind that it isn't my style of music, which I don't expect everyone to cater to my tastes, it's just the same repetetive cut of the song over and over.
Now, there is no going back when you start. No I'm not talking about street life, I'm talking that there is absolutly no save option, so if something should happen between the levels, your srewed and have to start all over.
One big complaint I have is on level 8, sometimes the enemies will appear right behind your websites logo. When I go for the kill, I get a tab popping up and getting in the way of my progress. Luckily I have a fast trigger finger, but for the less fortunate I'd imagine that it annoys them far more than myself.
The art, not bad. Seen better, but seen far worse. Maybe turn this game into a side scroller/platformer game. It just seems like you stopped pretty short.