GAMEFAQS AIN'T GOT THESE
Enter these on the main menu screen. You'll hear a 'caw' if you did it right.
Big Head Mode
The classic. All birds, including NPCs, get giant heads.
UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A
Infinite Nest Twigs
Gives you unlimited twigs for nest building.
X, Y, X, Y, LEFT BUMPER, RIGHT BUMPER
"Fish Game" Mode (Rumored)
Changes all bird models into low-poly fish that "swim" through the air. Many people say this is a myth, a reference to the rival GameCast title.
DOWN, Y, UP, X, LEFT, B, RIGHT, A