Hi there rlly isn't a cheat exactly but however there is a glitch 2 lvl up a lot. ok go find like 10 lvls higher than u undead has 2 be undead ok and make sure u have a lot of Phoenix downs like 20...
yes, go onto gamezone.
click on psp
then click on f(for final fantasy)
find the game
then under the picture of the game there should be cheats,download and etc
click on cheats
there will be websites...
It is highly unlikely that you'll be able to loot the Empyreal Soul from the one monster it drops from, the level 99 Red Chocobo, even with Thief's Cuffs on. The alternate route is much longer but...