Item trick
Place items, such as medicine, in the vault after they only have one charge remaining. When the items are withdrawn, they will be fully charged.
Easy money
Next to Commander Kraze's room is a room with people walking around and two suits of armor. Go to the suit on the right and press [Action] to get money.
If you recruit the cup player, the speed of the 10k bet slows down dramatically.
Easy levels
As soon as you get through the Fortress of Kwamba, go to forest village and fight 6 Kobolds. This should take you up to level 25.
As soon as the game starts and you get to your house, leave and get some money from the cup and balls mini-game (30,000 to 100,0000 Potch). Buy the best armor available and get your weapon sharpened. Save the game then set out for some random battles. Try to kill three Bon Bons by yourself until reaching level 10. When you are close to level 10, go to Sarady in the Tigermouth. It is the mountain in the west. Go to one of the houses and find the man that gives you a Fortune Rune. Equip it to Cleo. When you do the "Fortress of Kwamba" leveling trick, she will go to level 33-40. If you do the same trick with only one other character (such as Luc) later in the game, he will go to level 50.
Unlimited money
Go to Rockland and talk to Marc. Bet 100 and check where the coin is located. Repeat this five to ten times and note the order of where the coin is placed each time. Quit the game, then repeat with10,000 bets. The coin will appear in the same order as it was the first time through.
Resurrect Gremio
To resurrect Gremio, you must first collect all 108 stars. Then, in the war room, following the destruction of Shazarade, Leeknat will appear to bring Gremio back. This is the only way. If you are having trouble finding the 108 stars, look in the walls of the cave of the past for a secret path and in your dungeon for someone.
Characters in the Elven Forest
Watch for two characters hiding in the shadows in the Elven Forest. If they are confronted, they will leave the game and cannot be found again. If can sneak up on them, you will get 100k bits for each of them. If you catch one, you will not be able to catch him again.