Although a bit bland (I've listened to way too many NES songs in my time, trust me) it has better flow than most 8 bit tunes. It feels a bit weak, and the bit setting it feels out in my mind is not a battle, but more of a climb or some such challenge- but not really a battle.
You've got some nice tunes, though. If you want to give it a battle or war type feel, put some depths between your notes, and make them feel stronger... Id give you examples, but its probably easier if you go look around the ost's, if you hadnt done so already. Wish ya luck.