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Playstation 2 - Fight Night Round 3 cheats

Unlock all venues:
Go to the Create Champ mode an type "NEWVIEW" as your first name.

Unlock new boxing styles:
Beat matches in ESPN Classic Fights mode or during career mode 

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

Unlock Fight as Ko Rey Mo:
Beat Ko Rey Mo in the light-heavy division in career mode.

Unlock The Burger King as your trainer:
Win on 1st place on the Burger King event in Career mode. 
After, press Down at the trainer selection until The 
Burger King appear on screen as a choice.