Well, I played Odin Sphere for an hour or two last night and came to a conclusion:
Odin Sphere is an excellent game, but I won't be playing it again until CodeBreaker releases a "Infinite HP for P1" code or something similar for the game.
It's a great game, but the difficulty increases too quickly and trying levels 10-15 times before beating them really sucks the enjoyment out of the game.
EDIT: w00t! Looks like someone already posted codes for Odin Sphere here.