Looney Tunes: Back in Action Duck Danger Secret Boss Battle (use cheat code OUTTAKE) also there is a glitch you can stand in the air above him and just defeat him easily
All Bosses: https://www.youtube.com/watch?v=JW8c5GNbQqs
walkthrough: https://www.youtube.com/watch?v=ppUt9p-6VHI
