Uoozu [Model DMG-USJ]

Secret passwords:
At the Stage number screen, select any stage greater than 1 using A. Press Start to start a password input mode. Enter one of the following words then hold Down and press Start to enable the secret feature.
STAF - Staff roll.
MSIC - Sound test.
FONT - Toggle between default small font and a larger one.
MODE - Options menu. You can select difficult, number of lives and toggle to inverted palette.
MAPS - Stage select.
XENA - Unlock levels A-C. Note, this is only enables these levels at the Stage number screen, but you still need to know a valid passwords to play them.