All Power Moves and 120 Achievement Points
     At the Title screen, press L1, L1, R2, R2, L2, R2, L1, R2.

Unlimited Batlauncher
     At  the  Title  screen, press Circle, Square, Circle, Square, L1,
R1, L2, R2.

Unlimited Handcuffs
     At  the  Title  screen, press Square, Circle, Square, Circle, L2,
R2, R2, L2.

All Cheats
     At  the  Title  screen,  press  L2,  R2,  L2, R2, Square, Square,
Circle, Circle.

Unlimited Batarangs and Electric Batarangs
     At the Main Menu, perss L1, R1, L2, R2.