All venues
Enter "NEWVIEW" as a first name in Create Champ mode to unlock all venues.

Bonus venues
Win a match at one of the corresponding venues in Career mode to unlock it:

Madison Square Garden
The Staples Center

Box as Ko Rey Mo
Defeat Ko Rey Mo in the light heavy division in Career mode to unlock him.

Burger King trainer
Win the Burger King event in Career mode. Then at the trainer selection screen, press Down until the Burger King appears as a choice. He gives you Heart when you fight.

Boxing styles
Win matches in ESPN Classic Fights mode or Career mode to unlock various new styles, at random:

Hard Straights
Hook Master
Judge Jab
Lethal Uppercuts
Philly Shell
Sinister Cross
Slickster
Smooth
Textbook
Uptight

Easy wins in Career mode
Go to the options menu and set "Illegal Blows" to "Off". Then, go to the fight store and buy the illegal head punch called "Elbow Shot". During a fight, use the Elbow Shot to counter attack each time your opponent throws a punch. Note: Make sure you use the Elbow Shot as a counter attack so that you can connect cleanly and powerfully on you opponent's head. You will see that the Elbow Shot inflicts a lot of damage to your opponent, and will KO him in a short period of time, or TKO because you inflicted so much damage to his eyes.

Gamerscore points
Accomplish the indicated task to get the corresponding number of Gamerscore points (1,000 total possible points):

Burger King (100 points): Win the BK Invitational fight.
Dodge (100 points): Win the Dodge sponsored fight.
EA Sports (150 points): Win any EA Sports sponsored fight.
ESPN FNF (150 points): Win any ESPN Friday Night Fight event.
ESPN PPV (150 points): Win any ESPN Pay-Per-View fight event.
ESPN WNF (150 points): Win any ESPN Wednesday Night Fight event.
Everlast (100 points): Win the Everlast sponsored fight.
Under Armour (100 points): Win the Under Armour sponsored fight.

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