I've been looking for a complete soundtrack for this. No luck so far the author seems to have disappeared. The only songs I know in the entire series are Moondance by Nightwish and Bodies by Drowning pool.
and i thought part 3 was good,this is in a whole new different legure of its own. Words can't describle how incredible this is at all. Love the beginning of this and How True Hyper Sonic looks, must have been hard to design.