Director Sounds Off
On disc one, go to the [Special Features] section and highlight [Main Menu]. Press [Down] once and some demon eggs will appear in the upper left corner. Press [Enter].
Play the [Introduction] from the [Main Menu] first. When you go back to the [Main Menu], highlight the [Introduction] again and press [Up], then select the hidden option.
DVD Production Credits
Highlight the above egg, but press [Down] instead of [Enter]. The crown will highlight. Press [Enter].