Unlock Characters
     To  unlock 6 new characters, simply beat them in story mode. Each
character  has  a preset order of opponents with the fourth and eighth
opponent  usually  being  one  of the hidden characters. Beat them and
complete the story to unlock them.

Extra Puyo Shapes
     From  the Option menu, you can change the shape of the Puyos used
in  most  single  and  multi-player  matches.  You start with 3 styles
(Real,  Classic, and Fever) but you can unlock more through story mode
by  finishing each character's story with an overall S-rank. A special
shape is also unlocked through training mode.

Betanuri       10 S-ranks
Chalk          Clear all 300 drills in training
Clear          22 S-ranks
Cube           15 S-ranks
Moji           5 S-ranks

Unlock New Modes
     There  are  several  new  styles  of play available in single and
multiplayer  games.  To  unlock  the  new  modes,  select  them in the
roulette  during  story  mode.  Select a "?" to reveal a new mode. You
don't have to win a match in the new mode to unlock it, just select it
once and completing story mode.

     Each  opponent's  roulette  has a preset order of modes. Each new
style is only available to certain opponents.