To unlock all venues, enter "NEWVIEW" as your first name in Create a Champ mode.
Ko Rey Mo and Burger King trainer:
To unlock Ko Rey Mo and Burger King trainer, enter "YAXKUKMO" as a last name in Create A Champ mode.
Unlock the following venues by performing the corresponding tasks:
VENUE - HOW TO UNLOCK
Staples center - Win a match at the Staples Center in Career mode.
Madison Square Garden - Win a match at the Madison Square Garden in Career mode.
Unlock the following fighters by performing the corresponding tasks:
FIGHTER - HOW TO UNLOCK
Ko Rey Mo - Defeat Ko Rey Mo in the light heavy division in Career mode.
Burger King trainer - Win the Burger King event in Career Mode. At the trainer selection screen it will display King.
Never lose fights glitch:
If you get knocked down in career mode turn the PS3 off before the bell rings. Start the match again and you will not receive a loss.
In career mode go to the options menu and turn off "Illegal Blows". Go to the fight store and buy the "Elbow Shot". Use it to counter attack your opponents punches.
Unlockable Boxing Styles:
Win matches in ESPN classic fights mode or career mode to unlock the following boxing styles:
Easy wins (Career mode):
-Go to the options menu and set "Illegal Blows" to "Off". Then, purchase the illegal head punch called the "Elbow Shot" at the fight store. Start a fight and use the Elbow Shot to counter attack each time your opponent throws a punch. Note: it is important 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 put him KO in a short period of time, or TKO because you inflicted so much damage to his eye.
-Go to the options in career mode and set the H.U.D. on and turn off illegal moves. During the fight only perform knees to the stomach. Note: You buy the knee move in the Fight store under "Illegal Blows To The Body". You can see your opponents health go down and then it will go into Knockout mode. Then, knock them out. Knees make your opponents health go down faster.
-When facing a boxer that is stronger than your fighter, try hitting them and moving away. Throw a jab or two then move away from them. This works very well if your boxer is faster. This also helps if your boxer is a lower weight class.
Quick knock out hint:
Swell one of their eyes, then get adrenaline rush and throw hooks. It is better if you are a hook master.