It sounds like someones tried to remix old school battle themes (rather poorly), with FF8 SFX on top. Some of the notes seem off key towards the end. It also seems to lack some sort of distinct melody in places, which you can usually hear easily in "normal" FF battle tracks (sometimes multiple melodies that work together in the better battle tracks). Not something I'd expect in an FF game, anyway, certainly not for a game on the PS2 either.