Cheats

During play, pause the game, hold L + R and enter the following codes:

Play as Frodo: B, X, X, A.
Play as Merry: A, Down, Down, A.
Play as Pippin: Y, B, X, Down.
Play as Faramir: A , A, Y, Y.
Aragorn 1,000 XP: Up, X, Y, A.
Aragorn level 8 skills: Up, X, Y, Up
Gandalf 1,000 XP: B, Y, Up, Down
Gandalf level 8 skills: B, X, Down, Down.
Frodo 1,000 XP: Up, Y, Up, Down.
Frodo level 8 skills: B, B, Down, Down.
Sam 1,000 XP: Y, A, Down, A.
Sam level 8 skills: B, B, Y, Y.
Legolas 1,000 XP: A, Y, Up, A.
Legolas level 8 skills: X, Up, Up, Down.
Gimli 1,000 XP: B, B, Y, A.
Gimli level 8 skills: A, B, Down, X.
Aragorn 4-Hit Combo: Up, X, Y, Down.
Gandalf 4-Hit Combo: Down, Y, Up, B.
Legolas 4-Hit Combo: A, B, Y, X.
Gimli 4-Hit Combo: Y, X, Up, A.
Frodo 4-Hit Combo: B, X, X, A.
Merry 4-Hit Combo: Y, A, X, X.
Pippin 4-Hit Combo: A, A, Down, B.
Sam 4-Hit Combo: Up, Down, Y, Y

The following codes will only work after you have beaten the game once.
During play, pause the game, hold L + R and enter the following codes:

Infinite Missile Weapons: X, X, Down, B.
Invincibility: X, B, X, Up.
Full Health: X, X, B, B.
Perfect Mode: B, Down, Y, A.
All Attack Upgrades: Up, Down, Y, X.
Always Devastating: Y, Up, Y, Down.
Target: Down, B, Up, X.