OverClocked Remix released a truly rocking Bionic Commando album last year entitled OK, We'll Groove, but the community is still celebrating the release all these months later.  If you're joining the party late, enjoy this "Enemy Underworld" track by Nutritious off the album which combines the Nintendo Entertainment System title's main theme with the Area 5 "Heat Wave" theme with the ambiance and style of a God of War music track.  Swing on over to OCR to check out the free download and the album itself which is also freely available.  You won't regret it (and I'm not just saying that as one of the last Bionic Commando fans in existence).