It would be a rather cowardly move on the part of Newgrounds to take this off. There are probably thousands of movies on here that use copyrighted music, so that is a lame excuse. I would just let him resubmit it with different music and let it stay here forever.
As far as the quality of the game goes, there were misspelled words, which makes the game worse automatically. The engine was OK and I was fine with the graphics. The missions were interesting but very glitchy, especially in the school where students would randomly disappear and I couldn't win because of it. The cutscenes could be a little flashier. Overall, the game was OK. There are thousands of worse games on this site. With new music it should be allowed to stay.