The dubstep feel you gave the intro, be it long or short (who cares, its ear tingling!) just gives the build up a general kick in the ass out the side door and onto the main stage! The switch at 1:05 was an interesting take, and the overall feel of this piece just takes me back to my classic Metroid days where I was busy slaughtering kraid...
Ahh...nostalgia...
MORE PLEASE! :D