Lord of The Rings - The Return Of The King cheats and cheat codes for XBox

Pause the game play, then press L + R shoulder buttons and 
press the following button combinations:

Multiplayer experience share: Down, A, A, A
Multiplayer health share: Y, Up, X, X
Infinite multiplayer respawns: B, X, Up, B
Unlock all Actor Interviews: A, X, A, Up

All upgrades (need to completed game once): Up, Down, Y, X
Always Devasting (need to completed game once): Y, Up, Y, Down
Infinite Missiles (need to completed game once): X, X, Down, B
Invulnerable (need to completed game once): X, B, X, Up
Perfect Mode (need to completed game once): B, Down, Y, A
Enemy Debug Mode (need to completed game once): Down, B, Up, X
Restore Health (need to completed game once): X, X, B, B

Aragorn cheats: 
+1000 xp: Up, X, Y, A
Level 2 Skills: B, Y, A, Y
Level 4 Skills: Down, X, B, X
Level 6 Skills: B, Y, X, X
Level 8 Skills: Up, X, Y, Up
3 Hit Combo: X, Down, B, Up
4 Hit Combo: Up, X, Y, Down
Special Abilities: Down, B, Y, Y
Restore Missiles: Y, X, X, Y

Faramir cheats: 
+1000 xp: X, Y, Up, X
Level 2 Skills: A, X, A, Down
Level 4 Skills: A, A, X, X
Level 6 Skills: Y, A, Down, B
Level 8 Skills: B, Down, Down, Down
3 Hit Combo: X, Y, Up, Y
4 Hit Combo: A, X, Up, A
Special Abilities: Up, X, B, Up
Restore Missiles: Y, Up, A, A
Unlock Secret Character: A, A, Y, Y

Frodo cheats: 
+1000 xp: Down, Y, Up, Down
Level 2 Skills: Y, Up, Down, B
Level 4 Skills: Y, Up, B, Down
Level 6 Skills: Down, Down, A, Y
Level 8 Skills: B, B, Down, Down
3 Hit Combo: X, Down, Y, X
4 Hit Combo: Down, X, Down, B
Special Abilities: Y, A, Down, A
Restore Missiles: Y, Y, Y, B
Unlock Secret Character: Y, B, B, B
Unlock Secret Character: B, X, X, A

Gandalf cheats: 
+1000 xp: B, Y, Up, Down
Level 2 Skills: Down, Y, A, Y
Level 4 Skills: Y, Up, X, A
Level 6 Skills: Y, Y, A, Up
Level 8 Skills: B, X, Down, Down
3 Hit Combo: Down, A, Y, Down
4 Hit Combo: Down, Y, Up, B
Special Abilities: Up, Down, Y, B
Restore Missiles: Y, Down, A, X

Gimli cheats: 
+1000 xp: B, B, Y, A
Level 2 Skills: Up, B, X, X
Level 4 Skills: Y, X, Down, Up
Level 6 Skills: Down, Y, Down, X
Level 8 Skills: A, B, Down, X
3 Hit Combo: Up, X, B, X
4 Hit Combo: Y, X, Up, A
Special Abilities: B, X, A, B
Restore Missiles: B, B, B, A

Legolas cheats: 
+1000 xp: A, Y, Up, A
Level 2 Skills: X, X, B, X
Level 4 Skills: Down, Down, A, A
Level 6 Skills: Down, B, Up, Down
Level 8 Skills: X, Up, Up, Down
3 Hit Combo: X, Y, Y, B
4 Hit Combo: A, B, Y, X
Special Abilities: Y, B, A, B
Restore Missiles: Y, Y, Y, Down

Merry cheats: 
+1000 xp: Down, Down, X, A
Level 2 Skills: B, Down, X, X
Level 4 Skills: X, A, B, Down
Level 6 Skills: Down, Down, X, Y
Level 8 Skills: Down, Y, A, X
3 Hit Combo: Y, A, Up, Y
4 Hit Combo: X, A, X, X
Special Abilities: Up, Y, B, B
Restore Missiles: X, B, B, Y
Unlock Secret Character: A, Down, Down, A

Pippin cheats: 
+1000 xp: Y, A, X, A
Level 2 Skills: Down, A, Down, Up
Level 4 Skills: A, Down, Down, Down
Level 6 Skills: B, Y, B, Y
Level 8 Skills: X, Up, Up, B
3 Hit Combo: Up, Up, X, B
4 Hit Combo: A, A, Down, B
Special Abilities: X, A, B, Y
Restore Missiles: Up, B, Down, X
Unlock Secret Character: Y, B, X, Down

Sam cheats: 
+1000 xp: Y, A, Down, A
Level 2 Skills: B, A, B, Y
Level 4 Skills: Up, Down, X, A
Level 6 Skills: Down, Down, Up, Up
Level 8 Skills: B, B, Y, Y
3 Hit Combo: X, A, B, X
4 Hit Combo: Up, Down, Y, Y
Special Abilities: Up, B, A, B
Restore Missiles: A, A, B, A

Note:
If the enter code is accepted, you should hear a sound.
Some of the cheat codes, you can use only once.

Unlock Interviews 
Beat the game to unlock the following: 
Palantir of Saruman 
Billy Boyd interview 
Dom Monaghan interview 
Andy Serkis interview 
David Wenham interview