Cat In The Hat

Go to the main menu, hold R1 + R2 + Circle after press the following
button combinations:

Open all levels:
press Down, L2, Up, L1, Square, Down, Down, Down, Down, Up.

Infinite health
press Square, L1, L1, L2, L2, Up, Down, Up, Up, Down.

Bonus life
press Up, Down, Square, L2, L1, Down, Up, Down, Down, Up.

Bonus ten magic pick-ups:
press L1, Down, L1, L2, Square, Down, Up, Down, Up, Up.

4 bonus door keys:
press Square, L2, Down, L1, L1, Up, Square, Down, Up, Down.

All Gallery Items:
press Square, Down, L2, Down, L1, Square, Up, Square, Down, Down.