If you like those good ol’ game tracks from years past you’re gonna love Phlogiston’s album for Warlock Bentspine. Tracks like Destrocan stage and the Boss theme remind me of the NES Megaman games. No matter how you swing it, if you like old school chip tunes, you’re gonna like the album. It also comes with two tracks not found in the game. And it’s free. Bonus. 
http://www.iimusic.net/plus/2010/08/phlogiston-warlock-bentspine