Stage Select:
At the main menu enter circle, x, square, up, down, left, right, square, circle.

Play as Benigumo:
Successfully complete Aska's storyline.

Play as Coffy:
Successfully complete Aska's storyline.

Play as X:
Successfully complete Ice's storyline.

Hint: Kill more enemies faster:
When playing as Aska, get close to a group of at least two enemies then press Square. Aska will execute a combo that should kill all the enemies in one hit.

Cheats submitted anonymously.