Love everything about this one, mate. Love the keyboard/synth in the verses, love the heavy, pounding beat and the guitars in the chorus, love the lyrics, and love the callback to one of my favourite songs ever. I have a feeling I'll be listening to this one a lot these next few days.
Also, I have to ask: Was that
"Grind!!" you used on this track a sound file from the game, or was that actually you? In any case, the mental image of you wielding one of those Grinder gatling gun is kind of hilarious. ^^