Easy Way to Defeat Feral Chaos
An easy way to defeat him is to use Kuja. Basically have Kuja at level 100 and make sure you have the hp attack ultima equipped and have good level 100 gear such as the lufenian gear. Fly as high in the arena as you can by doing dodges and stay up there. Now from this height just spam Ultima. It will take time to kill him seeing as he has 120k hp but Feral Chaos has no air game at all and if you just keep spamming it you will remain untouched. I beat Feral Chaos using just Kuja believe me it works.
Added by: Lelouch Lamperouge Nov 18th 2011, ID#4159