Oboro
As you are in Rainwall you will need him to advance in the story. After you are done talking to him you must go to the inn and speak to Norden. After you are done following the next few scenes, wait until after the battle of Raftfleet. He will be there and you can ask him to join. *** You need to do the bar scene or he will be difficult to get.

Super character
The following setup will basically make your character immortal:

Equip four Eyeball Rings
Rune Slot 1: A Strike-Back Rune
Rune slot 2: Double Edge Sword (If the character has a 2nd Rune slot)
Rune slot 3: Drain Rune (If the character has a 3rd Rune slot)

This setup isn't cheap, but you can handle many Bosses solo with it. You may need to remove the Double Edge rune from some characters because they do not have a lot of HP. Go to the big hole near the rotating bridge. In the area before the ruins, the Eyeball Ring is commonly dropped.

Byakuren
One way to get Byakuren (the giant snake that attacks you when you cross the bridge in your Headquarters) is to have Levi the magician in your party and defeat him. Afterwards he will join your Star Of Destiny tablet.

Muraad
He will be at all large battles. Keep asking him until he joins at each of the places (such as Rainwall, Raftfleet, Lelcar, and Doorat).

Money $$$ Money and armor
You need to recruit Subala and store all of your party items with Chuck. Now, play the fishing game against Subala at your headquarters. When you play the fishing game,you will sometimes catch "? Pot" and parts of fish bodies. Play the fishing game about five or six times depending upon your skill. Go to the closest appraiser and get all of your "? Pots" appraised. You can then sell the pots to the appraiser for a significant profit. You can make over 200,000 Potch in one trip. The fish body parts are armor that you can equip on a few characters. This is good armor to have early in the game.

Lady Sialeeds
I recommended that you do not level up Lady Sialeeds because you cannot use her in the final battle.

Josephine
After the Battle Of Raftfleet she is in Haud but you must have Lady Sialeeds in your party.

Completion bonus
You need to Beat the game and save when prompted. Start a new game and select the cleared saved game file. You will start with the money from your previous game, collected formations, your Party SP, collected Epics, inventory and storage items, and your Hero's name. Also,if you want to run faster you need to press L2 or Triangle.

Hidden bath scenes
Bring one of the following set of characters into the bath in your headquarters to trigger a hidden bath scene:

Scene 01	Josephine, Maroon, Faylen
Scene 02	Kisara, Lun, Subala
Scene 03	Eresh, Leilei, Shunmin
Scene 04	Zerase, Nikea, Bernadette
Scene 05	Lyon, Miakis, Roy
Scene 06	Flail, Byarkuren
Scene 07	Lu, Jeane, Marina
Scene 08	Nifsara, Norma, Linfa
Scene 09	Lorelai, Viki, Zweig
Scene 10	Isabel, Nelis, Sharmista
Scene 11	Lyon, Sialeeds
Scene 12	Maroon, Muroon, Faylon
Scene 13	Dinn, Isato, Matthias
Scene 14	Kyle, Gavaya
Scene 15	Roog, Nick, Rania
Scene 16	Ernst, Ax, Moroon
Scene 17	Logg, Retso
Scene 18	Levi, Wabon, Babbage
Scene 19	Alhazred, Ganoh, Sairoh
Scene 20	Zegai, Killey, Gunde
Scene 21	Nakula, Raven, Egbert
Scene 22	Rahal, Lance, Mohsen
Scene 23	Cathari, Hazuki, Urda
Scene 24	Bergen, Sorensen, Dongo
Scene 25	Georg, Richard, Yahr, Taylor
Scene 26	Shigure, Sagiri
Scene 27	Galleon, Goesch, Murad
Scene 28	Cornelio, Baslan
Scene 29	Cius, Haleth
Scene 30	Shoon, Takamu
Scene 31	Belcoot, Shinro

George
I recommended that you do not level up George because you can't use him in the final battle.

Skip boat sailing scenes
While sailing on a boat to a location, press Triangle to skip the boat trip and arrive instantly at your destination.