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Sony PSP - Fight Night Round 3 cheats

Better stats:
First sign a contract for a fight, then select aggressive train. Select 
either power, balance, or speed. Then, continue. You will see your boxer 
before, and his stats either going down or up. If they go up, fine. 

In case if they start to go down, press Home to go back to the PSP's 
main screen. Go back into the game, repeat the previously process,
looking for better stats. 
Note: The only reason this is useful is because the game loads fast.