All characters
Press Right(2), X, Left(2) at the title screen. The sound of a cheer or moan will confirm correct code entry

Another world
Press X, Left, Right, Left, X at the title screen. The sound of a cheer or moan will confirm correct code entry

Quick retry
To quickly quit and retry a level, press Start to pause game play, then press Y

Talk demo
Enable the "All characters" and "Tarot reading" codes. Then, press X, Up, Left, Down, Right, Up, X, Down, Left, Up, Right, Down + X at the title screen. The sound of a cheer or moan will confirm correct code entry

Tarot reading
Press Up, X, Down, X, Up at the title screen. The sound of a cheer or moan will confirm correct code entry