Collect all the babies in the game. A "Cheat Discovered" message will show up after the intermission and show a baby flying on a jet pack.

Beat the basketball mini-game at the Lower East Quack level to unlock the Time Slice Camera

This is found in New Quack city. Fine the building where you push the statue in front of the camera. There you will find w TV screens with small animations on them. Shoot the one with the BIZZARE company logo on it.