up, down, down, up, left, triangle, right, square, down, circle, L1, L2
All sub-bosses
Up, Up, Right, Right, Left, Circle, Circle, Down
Disember any time
Down, Square, Down, L2, Down, Down, Down
Juni's second costume
Square, L1, Circle, Up, Triangle, Left, Triangle
Nephra's second costume
R2, Down, Down, Circle, Square, Square, R2
Orion's second costume
Up, Down, Up, Down, Triangle, Left, Right, Left, Right, Circle, R1, R2
Play as Kron (in PAL version)
Up, Down, Right, Left, Left, Up, Left, R1, Circle, Circle, L2
See endings
Circle, Circle, Circle, L1, R1, Circle, Left
Syn's second costume
Right, Right, Right, Left, Triangle, Left, Left, Square
Unlimited magic
L1, R2, R1, Square, Down, Circle, Down, L2, Square, Square, Square, Square
Unlock all characters
Square, Triangle, Down, Left, Circle, Square
Unlock Bimorphia
Circle, Triangle, Up, Up, Down, Right
Unlock Juni
Up, Triangle, Down, Circle, Left, Square
Unlock Kahn
L2, L2, Up, Up, Up, Left, Down, Up, Circle, L1
Unlock Kron
Left, Right, Triangle, Right, Left, Circle
Unlock Moloch
Down, Down, Square, Up, Circle, Triangle
Unlock Mongwan
Square, Circle, Left, Square, Square, Right
Unlock Redemptor
Right, Circle, Right, Right, Right, Triangle
Unlock Stygian
R1, Right, R2, Square, R1, Down, R1, R2, R2, Circle
Unlock Syn
Triangle, Left, Triangle, Triangle, Up, Circle
Unlock Vodu