Daffy Duck in Hollywood - Cheats

Invincible!

At the main menu, enter [Left] [Right] [Right] [Left] [Right] [Left] [Left] before selecting an item.

Stage Skip!

At the main menu, enter [Left] [Left] [Right] [Right] [Left] [Left] [Right] before selecting an item. At the normal stage select screen, press [2] to move to the next set of levels.

See the Endings

At the main menu, enter before selecting an item:

Easy/Medium difficulty ending
Hard but not all statues collected
Hard with all statues

Fergus Head mode

First enable Invincibility and Stage Skip, then at the main menu, enter [Left] [Right] [Left] [Left] [Left] before selecting an item. The main sprite becomes the "Fergus Head". (To enter multiple cheats, you can select the difficulty selection or sound test instead of starting a game.)

Action Replay codes

00C58A0B: Infinite Lives

See the main page for Daffy Duck in Hollywood