Win a career mode fight at the Staples Center or Madison Square Garden to unlock it.
Fight as Ko Rey Mo:
Beat Ko Rey Mo in the light heavyweight division to unlock him.
Win matches in ESPN classic fights mode or career mode to unlock the fighting styles used by your opponents
Easy career wins:
Set Illegal Blows to 'off'. Get the illegal blow 'Elbow Shot' from the store, start a fight and use it as a counter. Ouch!
The Burger King is your trainer:
Win the Burger King event in Career mode. Press Down at the trainer selection screen until The Burger King appears.
Enter NEWVIEW as your first name in Create A Champ.
Thanks to Revolution Reader tehbaddstman!