Extra money: Enter the following during gameplay: D-pad Up, X, D-pad Up, X, D-pad Down, B, D-pad Down, B
All skills at maximum: Enter the following during gameplay: A, D-pad Left, D-pad Right, B, D-pad Down, D-pad Up, [cube:]
Restore health: Enter the following during gameplay: D-pad Left, D-pad Right, D-pad Up, D-pad Down, A, A, A, A

More Chronicles Of Narnia Cheats
All "button press" cheats are courtesy of CVG