Rayman 2: Revolution Cheats (PlayStation 2)

On the first map, access the options screen. Select Language, then Voices. Highlight
"Raymanian, then hold down the L1 and R1 buttons. While holding them down, press L2, R2,
L2, R2, L2, R2. This will unlock the additional levels.

Hold L1 and R1, then press L2, R2, L2, R2, L2, R2. Do this during gameplay in Baby Soccer.

Go to the options screen and select sound. Select the "Mute" option, then hold L1 and R1.
While holding them, enter L2, R2, L2, R2, L2, R2. This will access the cheat menu.