Beat these challenges in career mode to unlock the following. All fighting style unlockables are random.

Arena: Madison Square Garden - Win a match here to unlock the arena.

Arena: The Staples Center - Win a match here to unlock the arena.

Boxer: Ko Rey Mo - Defeat Rey in the light heavy division to unlock him.

Fighting Style: Hard Straights - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Hook Master - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Judge Jab - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Lethal Uppercuts - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Philly Shell - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Sinister Cross - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Slickster - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Smooth - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Textbook - Win matches in ESPN Classic Fights mode to unlock this.

Fighting Style: Uptight - Win matches in ESPN Classic Fights mode to unlock this.