The Synth
The "synthesized" aspects of the song make it sound... I don't know, flimsy. That's what I use to describe the song. This one could use more than a little work.
It also hurts when the riff sounds very close to "Decisive Battle"--part of the Final Fantasy VI soundtrack. This is the sort of fluffy stupidity that deflates all seriousness and gives power metal a disdainfully bad name.
However, I can envision (hear?) a remastering of the initial few moments of the track--or sections of the track--and creating slick video game loops out of them. If anything, the music lends itself to an arcade feel that would be ideal in an action game of old school nature, say a run'n'gun Metal Slug or Contra clone. I know the recent game "Infiltrator" utterly lacks a musical score, which sort of deflates its appeal since you sort of expect some kind of background music in a run-and-gun!
In any case, this needs to shed more than its skin to achieve greatness. The drum samples, for instance, need to match the loudness of the guitars, and beef up the bass. That can always use some boosting! If anything, shelf this baby for a rainy day, then list all the mistakes you hear and correct them one-by-one. It isn't like this song has no potential at all. It couldn't be defined as power metal without that.