All morphs
Press Circle, R2, Circle, Left, Right, R2, Up, Down, Circle, R2 at the main menu. The sound of a chicken will confirm correct code entry.
99 lives
Press Up(2), Down, Left, Right, Square, Up, Left, Right, Circle at the main menu. The sound of a chicken will confirm correct code entry.
Ballistic chicken weapon
Press Square(2), Circle, Square, Circle(2), Square(2), Circle, Square at the main menu. The sound of a chicken will confirm correct code entry.
+1000 Pickups
Press Square, R2, Circle, Left, Up, Down, Right, Square, L2, Circle at the main menu. The sound of a chicken will confirm correct code entry.
+10 Muppet Tokens
Press Left, Up, Down, Right, Square, R2, Circle, Square, L2, Circle at the main menu. The sound of a chicken will confirm correct code entry.
Unlimited sub-game time
Press Down, L2, R2(2), Up, L1(2), R1, Down, Up at the main menu. The sound of a chicken will confirm correct code entry.
Unlock all gallery items
Press Square, Left, Circle, Right, Down, Up, Square, Down, Circle, Down at the main menu. The sound of a chicken will confirm correct code entry.
Unlock all levels
Press Up(2), Square, Down(2), Circle, Left, Square, Right, Circle at the main menu. The sound of a chicken will confirm correct code entry.
Level select from main menu
Press R2(4), R1, L1(3), R1, R2 at the main menu. The sound of a chicken will confirm correct code entry.
Toggle invincibility
Press L2, R2, R1, L1, R2, L2, R2, R1, L1, R2 at the main menu. The sound of a chicken will confirm correct code entry.
Toggle debug information
Press Up, Right, R2, Square, Left, R1, Left, Up, Left, L2 at the main menu. The sound of a chicken will confirm correct code entry.
Tunnel soak/consecutive level load
Press L2, L1(2), R1, R2(3), Square, Left, Up at the main menu. The sound of a chicken will confirm correct code entry.
Toggle fly cam
Press Square, Left, R2, Up, R1, L2, R1, Up, R2, Up at the main menu. The sound of a chicken will confirm correct code entry.
Easy Muppet coins
The Muppet coins will reappear in previous levels in the same locations. Simply defeat the previously beaten opponent to spawn the coin again.
Alternate ending sequence
Get a 100% game completion.