Enter NEWVIEW as your first name in create a champ mode to unlock all arenas.
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.
The Burger King as your trainer:
Beat the Burger King event in career mode, then when selecting your trainer, press Down until Burger King is selected.
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!
||How to Unlock
|1. Burger King Achievement - 100 points
||Win The BK Invitational Fight.
|2. Dodge Achievement - 100 points
||Win the Dodge sponsored fight.
|3. EA SPORTS Achievement - 150 points
||Win any EA SPORTS sponsored fight.
|4. ESPN FNF Achievement - 150 points
||Win any ESPN Friday Night Fight event.
|5. ESPN PPV Achievement - 150 points
||Win any ESPN Pay Per View fight event.
|6. ESPN WNF Achievement - 150 points
||Win any ESPN Wednesday Night Fight event.
|7. Everlast Achievement - 100 points
||Win the Everlast sponsored fight
|8. Under Armour Achievement - 100 points
||Win the Under Armour sponsored fight.
Thanks to Revolution Reader tehbaddstman!