Baigan, Right Arm, Left Arm:
Use Berserk on Cecil, have Tellah use level 3 Spells, have Palom use Bio or Twin only if you have high enough HP, Porom heal and Yang attack. Only use magic on him if he hasn�t used Wall. If he has, it will bounce back onto you. Only attack the Main part of his body because the arms can regenerate. The weird thing is, if you beat his main body and his arms are still there, then you have to finish them off as well.
After the battle, save and rest at the points specified earlier, and continue up to the throne room. Talk to the King to find out that the fiend of water, Cagnazzo, has been impersonating him. Now for the second fight with a fiend.
Cagnazzo:
Bolt attacks are the Key. Palom and Tellah will make short work of this battle, so attack normally with everyone else. When �Tsunami Warning� appears, use a Bolt attack as fast as possible to make it disappear.
After winning, Cid appears behind you, and begins to talk. After a short conversation, he agrees to let you use his airship. While going through the passage however, Cagnazzo uses his dying breath to bring the walls in on you. The doors are locked and there is no way out. So after saying goodbye, Palom and Porom cast Stone on themselves to stop the walls from closing in. Tellah tries to cure them, but it is useless. However�
The scene switches to Golbez and Kain. They form a plan to exchange Rosa for the last Crystal, but kill Cecil in the process. Returning to Cecil, they go through a secret passage onto a new airship, �The Enterprise�. Taking off, you can now go just about anywhere on the map. But first, Kain comes to make the deal with Cecil. After making the arrangements, you now regain control. Note: the next place is optional. Cid will now join your party as well.