Unlock Extra Characters
Daichi:
Defeat Daichi and win Tournament mode.
DJ:
Defeat DJ and win Tournament mode without using any continues.
King:
Defeat King and win Tournament mode.
Play as King:
Defeat King in Tournament mode and win the tournament to unlock him as a playable character.
Select Commentator:
Press L or R at the Player Selection screen in any mode except Tournament to select DJ, Kenny or Tyson as the commentator.