If you have a modded PSP (Custom Firmware) running CFW or have a PPSSPP emulator, you can use or Cheat.db to inject codes. These are external cheats, not built into the game.
One of the most sought-after features in FIFA 12 is the ability to play with legendary players. To unlock these powerhouse teams for use in Exhibition matches: fifa 12 cheats psp
: Place a cheat.db file into the PSP/CHEATS/ folder on your device. If you have a modded PSP (Custom Firmware)
: For long-distance shots (30+ yards), hold L (L1) and push the Analog Stick forward while powering up to about 3 bars. This adds dip and power. fifa 12 cheats psp
In Career Mode, money is vital for buying great players.