Unlimited Power Spell
At the Title screen hold L1 L2 R1 R2 and start a game.
Wear School Uniform
At the Title screen hold L1 R2 Select Triangle and start a game.
At the Title screen press Left Circle Down Triangle Right Square Up X L1 R2 L2 R1 Start.
Achieve an "A" ending rank to unlock an "Extra Mode" option on the Title screen.