Invincibility:
Hold L1 + R2 + L2 + R1 (in order) and press , Down, , Up, , Right, , Left during game play and a message will apear.

Increase Level:
Hold L1 + R2 + L2 + R1 (in order) and press , , , , Right, Down, Left, Up during game play and a message will apear. Note: Repeat this code twelve times to fully level up your character.

Increase Spell Level:
Hold L1 + R2 + L2 + R1 (in order) and press Up, Down, Left, Right, Right, Left, Down, Up during game play and a message will apear.

Full Health:
Hold L1 + R2 + L2 + R1 (in order) and press , Down, , Left, , Right, , Up during game play and a message will apear.

Extra Money:
Hold L1 + R2 + L2 + R1 (in order) and press , , Right, Left, , , Down, Up during game play and a message will apear. Repeat the code to gain an additional 10,000 each time.

Thanks to Revolution reader Sho-nuff!