Great Classic Rehash
I don't know what half these people are talking about, the classic/old-school style games are the founding ground of all the games we have today like Halo, Call of Duty, Starcraft, etc...
I'm giving you 10/10 and 5/5 for bringing some nostalgia to Newgrounds instead of the usual flash bang boom of modern arcade style games.
I thought this game was really great, sure it was repetitive but that's what games used to be like, and to be honest this is one of the best Flash shooters I've played in a long time.
Keep the work coming, maybe a sequel with some more enemies and cooler levels, but don't change the game too much!