As the game boots up, before even the white text 'SCEA Presents' Legal screen comes up. Hold down L1 + L2 + L3 (thumbstick button) + Square + Circle simultaneously. If you did it right the legal screen will show up in a nice shade of purple. If you want to run in 480p you are still going to need to set that up through the menus as you do normally. This cheat will work on the PS2 and also the PS3. If you are doing this on the PS3 you may need to plug the controller in using the USB cable, as the controller is a little slow to come to life when the game boots.