Secret Sub-Game:

Press and hold the R1 and Circle buttons while the 
game is loading. After that, when the CDs start 
flying across the screen, press U, L, D and R. A 
small character will pop up in the bottom left-hand 
side of the screen to kindly tell you that you've
gained access to the cheat. The next time that the 
game loads, a secret game will appear.