guys is rythum mixer just to over opwer to be unlocked at the begaing of the game becuse as terra i pwned ever boss with it even the final boss of terras i was like WTF happen? i did the same to vens boss i was like lol also to get it working all it takes is you to be in a comade style first then use like a thunder or blizzered moves to go into it i just spam thunder surges to make it work lol