Sounds great, but..
This sounds good but it lacks something that your other metal versions have. The metal itself is not all that apparent. If I listen to your Sonic 2 Chemical Plant song or your Flying Battery Zone tunes you can hear the guitar and it sounds really great. in this one the guitar is hardly audible and does not do enough. The guitar could help make this music even more dramatic if it did more and was a bit louder.
Sweet
This sounds like something epic that's going kick my ass is going to happen:P
Witch
You made another one for when someone startled the witch didn't you? If you did, how long was it?
roughly 30 seconds - http://www.newgrounds.com/audio/liste n/234028
Sounds like the original...
... Only better! Great background guitar and drums, they really complement the main theme.
I'll be honest here, this isn't nearly as good as everyone else seems to think it is. All you did is slap on some fairly generic electric guitar clips on top of the normal song. That just stinks of a total lack of effort.