This is your signal to get in close and tap the circle button.

Hint: the belly flop (jump then circle button) will clear up pretty much everything in the first few levels.

A dotted line circle times when you are allowed to attack, lighting up at the moment you should jam your circle button.

Hit the PSP's circle button to play the notes that appear on the screen, and if successful, you trigger whatever comes next.

However, by hacking your opponent with the circle button, you steal their "BRAVE" points, which in turn assist in inflicting more damage to your foe.