Gives me flash backs to playing the old R TYPE arcade cabinets back in the day! Love it.
All I can say is, it may need some more body/drama. I feel like some orchestral swelling here and there would be awesome!
Sephiroth Theme- Advent Children- The One Winged Angel is an AMAZING example of the combination of metal and orchestral for a boss, but I wouldn't say it needs to be AS orchestral.
Cheers!
R4R