I liked the end - but nothing original
I liked your idea of parodying the rock out contest, but it felt like a typical rythym game to me. The end was particulary funny, espcecially since the site has been going bad on me a few times :P
Your graphics are great (I know you stole the tankmen), but the sound of the dudes making the tank was annoying...quietnen down that a bit next time please :D
Good wee time waster though, a replay button at the end would have been a nice touch