Fight Night Round 3 Cheats - Xbox
Win a match at one of the corresponding venues in career mode to unlock it:
Madison Square Garden
The Staples Center
Fight as Ko Rey Mo
Defeat Ko Rey Mo the light heavy division in career mode.
The Burger King as your trainer
Win the Burger King event in Career mode. Then, press [Down] at the trainer selection screen until The Burger King appears as a choice. Note: He gives you Heart when you fight.
Win the indicated match in ESPN Classic Fights mode as the listed boxer to unlock the corresponding style:
Judge Jab: Defeat Joe Frazier as Muhammad Ali.
Lethal Uppercuts: Defeat anyone as Roberto Duran.
Sinister Cross: Defeat anyone as Roy Jones Jr.
Slickster: Defeat anyone as James Toney.
Textbook: Defeat anyone as Oscar De La Hoya.
Uptight, and Hard Straights: Defeat anyone fight as Winky Wright.
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". 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.