Legacy of Kain: Defiance Cheats

To kill Turel you have to wait until he roars and one of the gongs begin
to fluctuate(flash)
you have to do it fast or you will get shocked. If you hit the gong in
time Turel will lay down for a little bit, you need to get in as many
hits as possible in that time period. Do this a few times and his life
will fall fairly fast.

You practically do the same thing while fighting Janos. You just need to
wait until he does his flying dive at you then run at him swinging. This
battle takes a little longer but he will die eventually. Use the demons
he sends out to your advantage kill them and take their souls you'll
need them to kill Janos he gets hard.

You will take your vengeance upon his monstrous form. He is almost invulnerable unless you do the following. When the glowing yellow bands surround you, find the gong that is emanating them. You have to hit it either with your Reaver or with a Tk bolt. This will stun him. Get to him and hack at him as fast as possible. Repeat this as needed. Watch out for his other attacks. Near the end, all four gongs will start to emanate. The two end ones should be hit, killing him and giving you stronger telekinesis.

... and save it on your memory card, you'll then unlock some stuff which can be accessed by going to 'bonus materials'

Fill 'er up
LEFT, RIGHT, LEFT, RIGHT, Right Trigger, Left Trigger, B, Y, DOWN

enable tube
UP, DOWN, LEFT, RIGHT, Black, White, Y, DOWN, B

switch to equivalent toon version
UP, DOWN, UP, DOWN, Right Trigger, Black, DOWN, B, Y

give all ups
LEFT, LEFT, UP, UP, Left Trigger, Black, B, DOWN, Y

give all slams
RIGHT, DOWN, UP, DOWN, DOWN, Right Trigger, Y, B, DOWN

infinite reaver charge
DOWN, DOWN, UP, LEFT, Right Trigger, Black, DOWN, Y, B

all dark chronicles
Right Trigger, DOWN, Black, Left Trigger, RIGHT, Black, Y, DOWN, Left Trigger

all bonuses
Black, DOWN, White, Right Trigger, LEFT,White, DOWN, Left Trigger, Y

wireframe
Left Trigger, DOWN, Left Trigger, UP, Right Trigger, White, Left Trigger, DOWN, Y

no textures
Left Trigger, DOWN, Black, RIGHT, Black, UP, Y, Left Trigger, DOWN

invincible
UP, DOWN, RIGHT, DOWN, Right Trigger, Black, DOWN, Y, Left Trigger

To input the cheats pause the game!

L, Down, Black, Right, Black, Up, Y, L, Down

Pause the game when using Kain, then hit Up, Down, Left, Right, R2, L2, Triangle, Down, Circle. Your Reaver will be replaced with a cardboard tube.

When you beat the game, you unlock everything in the Bonus Material section, as well as all the story cutscenes in the Dark Chronicle. The Bonus Material section comprises a variety of extras, such as voice-over sessions, 3D renders, sketches of enemies, and more. The Dark Chronicle is a complete collection of all of the game's cutscenes, viewable in the order they appeared, giving gamers the story in full without the action.