Rather interesting song. It flows together well from one motion to the next, and succeeds at giving off a darker vibe, with low notes beating as a heart would, as well as the animalistic "growl" that you can hear in it, listen from 1:04 to 1:07 and you can hear a nice example of this.
It sounds like it would be a decent background music if the volume was turned down a little, to emphasize the beats. It would also play out well as a title screen I feel, if the tone of the game was correct.
One place where it does fail is that it on loop, it feels like the music is a few seconds too short, and the buildup in the beginning is lost on loop. This could be mitigated by using a fade out-fade in for the loop, and perhaps adding in a second or two of dead space between the loop.