Definitely the definitive version of this track. It actually includes the percussion that plays when you carry the bombs! I hate how every other version out there skips that part.
I have the blended version of the BL opening music plus Look Within downloaded on my playlist, alongside of Anesthesia and Security Breach. The motif that BL brought to the table in terms of music was so fucking good, that they keep using it, even for Nezzy. Bungle may drop the ball in terms of the game, but the music composers and the ones who archive it for later are 100% hard carrying the game.