Unlimited use of the Ring (Frodo):
Cheat Codes for LOTR: Fellowship of the ring Free Download
During play, quickly press [Y], [B], [A], [B], [Y], [X].
Limited armor:
During play, quickly press [X], [B], [Y], [A], [X], [B].
Unlimited health:
During play, quickly press [Y], [A], [X], [B], [A], [Y].