To change all of your enemies to birds, enter this password: B1RDY. Enjoy the fine feathered frenzy!
Nots: The "l" in the name is actualy the number one (1)
Enter this as a password:
This will take you to the end level.
After defeating Lizard,return to Downtown and go all the way to the left of the map, left of the Daily Bugle. Drop down on to whatlooks like a familiar pipe. Drop through the platform by pressing Down + Button A.
From the menu select continue, then enter the password: