Legacy Of Kain: Soul Reaver

Refill health:
Pause game play, then hold L1 or R1 and press Down, Circle,Up, Left, Up, Left.

Refill magic:
Pause game play, then hold L1 or R1 and press Right(2), Left, Triangle,Right,Down.

Pass through barriers:
Pause game play, then hold L1 or R1 and press Down, Circle(2), Left,Right,Triangle, Up.

Force Glyph:
Pause game play, then hold L1 or R1 and press Down, Left,Triangle, Down, Up.

Stone Glyph:
Pause game play, then hold L1 or R1 and press Down, Circle, Up, Left,Down,Right(2).

Sound Glyph:
Pause game play, then hold L1 or R1 and press Right(2), Down, Circle, Up(2), Down.

Water Glyph:
Pause game play, then hold L1 or R1 and press Down, Circle,Up, Down, Right.

Fire Glyph:
Pause game play, then hold L1 or R1 and press Up(2), Right, Up, Triangle,L2,Right.

Sunlight Glyph:
Pause game play, then hold L1 or R1 and press Left, Circle, Left, Right,Right,Up(2), Left.

All abilities:
Pause game play, then hold L1 or R1 and press Up(2), Down(2), Right(2), Left, Circle, Right, Left, Down. Resume game play to get the ability to phase through gates, climb walls, fire force projectiles, swim, and have the SoulReaver. (Information from Cheat Machine)