Enter "NEWVIEW" as a first name in Create Champ mode to unlock all venues.
Better stats
To get better stats, every time you must first sign a contract for a fight. Then, choose to train aggressive. Then choose either balance, power, or speed. Then, continue. The game will show your boxer before, and his stats either going down or up. If they go up, fine. If they start to go down, press Home to return to the PSP's main screen. Go back into the game, and do the same thing again, looking for better stats. Note: The only reason this is useful is because the game loads fast.
Bonus venues
Win a match at one of the corresponding venues in Career mode to unlock it:
- The Staples Center
- Madison Square Garden
Box as Ko Rey Mo
Defeat Ko Rey Mo in the light heavy division in Career mode.
Boxing styles
Win matches in ESPN Classic Fights mode or Career mode to unlock various new styles, at random:
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.
Easy win
When your enemy goes to attack you, block him and then use your special attack (down button for default controls.) Just keep repeating this until you get your enemy down on the ground. (I hope this information is useful. It worked for me and I beat the game within a day.)
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.
Ko Rey Mo and Burger King trainer
Enter YAXKUKMO as a last name in Create A Champ mode.