At the title screen, enter the following code while highlighting "New Game" to start a new game with an alternate storyline: Triangle, Square, Circle, Triangle, Square, Circle, X
To unlock different endings, perform the actions listed below:
Collect all of the Torn Letters to unlock Asagi Mode.
Collect 70 Lucky to unlock the Cave of Ordeals.
Die 1,000 times and begin a New Game+ to unlock the Prinny Raid Skill.
Hold the L button and R button and press X and Prinny will detonate. You will reset to your last save (useful for aborting boss fights gone wrong).
Collect 100 Lucky and choose the third option at the castle door to fight Etna.
