I used to be notorious for sky high juggles with Kyosuke in Rival Schools, I can only remember the basic one anymore though.

FP, FP, Enemy Launcher (FD+HK), super jump, Super Shadow Cut Kick (L2 I believe). If you can actually get it to hit, it's one of the coolest parts of the game.

There's also a way to make Sakura throw her shoe at you. I don't know how, but I've seen it happen.