Successfully complete the game. Load the cleared saved game file. Go to Mt. Zugzwang and walk south into the poison swamp to enter Estark's Lair. Defeat Estark to unlock the Stark Raving T'n'T board game. Win the board game to unlock Starkers as a character. Then, go to the Pothold to find Rebjorn as an available character.

Start by powering up your party members. Use Kabuff and Oomph. Next, use your most powerful magic (Kazap for your song, Kaboom, Kacrackle, etc. for your daughter). Korol likes to use Bounce -- be careful. Show No Mercy is not an option here. Steer clear of that tactic for your son and daughter, be at level 40 or higher, and have the Zenithian equipment for your son, the Princess's Robe for your daughter, and the Hero's Cape for yourself. It is essential for you to have these things to win. As for weapons, if you have patience get three Metal Slime Swords from a casino as well as two Gringham Whips. Equip your daughter and Preston (Prestidigitator), Metal Slime Swords for you, your son, and Goodian (Slime Knight). Also be at full stats (no curses and full HP and MP). You should be able to get to Korol with little to no battles at all, if you memorized the way. If you get into a battle, run away from it. You will need all your MP and HP intact.

• When you get to Bishop Ladja at Talon Tower, be at about level 34. Have your son at the back of your party so he will not get hit that often. Have Saber at "Show No Mercy". Use Oomph on Saber when he increases his attack power. Use Kazing to revive your party if they die. Keep attacking Ladja, healing when necessary and reviving, and using Oomph on Saber when he increases his attack power to defeat him easily.
  
• Another tactic you can use is setting your party (Saber, your son, and your daughter) to "Show No Mercy". Be at level 37 each for this.
  

Go to Talon Tower when you can. Balhibs are there, and a single one drops around 1,350 gold. Note: They are very strong; be about level 30 before doing this. Having the best equipment you can buy at the time will also help.

Talk to Saber. If he says "Grrr....Prrr", it indicates that the current area is safe. If he says "Grrr....", it indicates that the current area is not safe. Always use this in new rooms in a dungeon; it could help very much.