Unlock Boss Challenge Mode
Defeat both hidden bosses and then hold square + triangle when you select Arcade mode.
Extra Option
Clear the Boss Challenge mode without using a continue to unlock the Extra Option.
Infinite Custom Groove
Defeat all the characters in Survival mode without losing to get infinite custom groove.
Super Move
Defeat your opponent with one of the following to get a finishing blow: Counter a Super Move with either a Special or a Super Move; Counter a Special with a level 3 Super Move; or Hit a taunting opponent with a level 3 Super move.