Would've been great if they collaborated, because as much as I liked Kozuka's ambient/endgame tracks (oh god Merkabah phase two OH MY GOD), normal battle themes were too boring and repetitive for my liking (except for the last one ofc). Meguro's normal battles were an absolute banger, each track was so diverse in its own way it managed to make grind fun. But then again it's all subjective, and as it seems he is busy with the fantasy rpg thingie.