My Acapella Version of the Mega Man 2 Wily Castle (Incomplete)

[TheLuigiLightning 65]

I made an acapella version of the famous Mega Man 2 Wily Castle theme.  It's not quite complete, but I can't get the missing part down for the life of me.  It's very obvious where the missing part is, but it's not a big deal, so enjoy.  I would like you guys to rate it out of 10, and please be very honest.  I take criticism a little too seriously.  Feel free to hate on it if you want, after all, this is a very famous piece I'm messing with.  If you think I've ruined it, hunt me down!  Also, remember not to wine if you don't like it, and please use constructive criticism if you don't mind.  

Thank you.  Enjoy:

Wily Castle Full OST.wav