Energy Regain:
     When  you  get knocked down in a fight, hit the buttons rapidly -
X,  Square,  Triangle and Circle. this will regain your energy. (note:
you  can  also hit the buttons X, Square, Triangle and Circle when you
knock someone down, and that will also regain your e nergy.

Fighting Tips - Turbo Mode/Rumble Mode:
     When  you  get  "rumble" hit and hold R1 and L1 at the same time,
then you will get the tourbo mode which gives you infinite stamina.

Selene Strike move:
     Press Forward, Forward, Triangle, Back, Back, X to throw a spear.

Champ class boxers:
     Enter  championship  mode  and  enter  CHAMP  as a gym name. Exit
championship  mode  and  enter  arcade  mode to have access to all the
boxers including Damien Black.

Gold class boxers:
     Enter  championship mode and enter GOLD as a gym name. Note: This
also unlocks Nat Daddy in arcade mode.

Silver class boxers:
     Enter  championship  mode  and  enter SILVER as a gym name. Note:
This also unlocks Bruce Blade in arcade mode.

Bronze class boxers:
     Enter  championship  mode  and  enter BRONZE as a gym name. Note:
This also unlocks Kemo Claw in arcade mode.

Alternate costumes:
     Press Square + Circle at the character selection screen.