Good.
Hmm..
Pretty basic, tower-defence layout (although the enemies returning fire was a nice touch). The storyline was simplistic, and there were several spelling and grammar errors littering the work - those don't detract from the overall score, I just feel that if you're gonna spend the time making a well made game, you may as well spend an hour spell-checking and coming up with a more imaginitive story XD
A good/average score for a good/average game.