Ok, in the game you can buy lottery tickets. Most sell for 1,000 each, but in the beast pit there's a guy who sells for 100 each. You save the game and then spen all your money on the tickets. You may get a winner (10,000 is jack pot). If you don't get a winner load game agian and do the same thing You don't loose money if you load game agian.You can win the jack pot more than once.
Get Lenneth Valkyrie
Beat the optional dungeon "Corridor of Distortion". Lenneth will join you after battle.
Tamaki Nami mini concert
Witness Nami's transformation and talk to her immediately in the night and desire streeet during 6.00pm and she will join you. Visit the Red Lotus Bar in the same area during the night and she will perform the game opening theme "Fortune".You cannot have her in your party when visiting the Red Lotus Bar.
The Leviathan - Spear: Once you become a sergent, one of your mission will require you to find a miracle stone, and you have to go to a cave. At the end of that cave you will encounter a monster, once you defeat it you will receive the spear. With attack strength 56 points, 12 attack styles. Freeze your enemy instantly.
Rune Saber - Saber: Same condition as the spear, but the mission will ask you to go down to the sewer to defeat a jelly-kind of monster. After you defeated it you will receive it. Attack strength 56 points, 8 attack styles, and it can petrified your enemy.