Playing Neo: The World Ends With You for the first time. Any tips or tricks?

I don't even know what to be excited about first/most, seeing Neku again or the fact that I now have 6 party members! I'm going to destroy anything in my path, there is no way any Noise stands a chance against me. I don't have Ultimate difficulty yet, but when I do eventually get it I feel confident I can take them on, to get them pins so I can complete my Bestiary and 100% Records.