Attack a monster from behind to give your characters two attacks in a row.
To save money when you have another character and you get to the final floor, switch to Gre and defeat the Boss. Also, Gre has the power to make the Boss wait longer.
On the carrier where you fight Eugene is a room with a soldier lying on the bed. The window on the door has a red cross on it. Approach the shelf towards the back of the room and you will get a Naolin Gold each time that you talk to it. Also, on the 15th floor of the Society Dungeon is a room with three pillars that you can knock down with Mag's hand. Near the wall is a box that contains Naolin Gold every time you enter the dungeon.
Go to the Shade Ruins to get the spray parts.
Go to the Sheol Ruins to get the hammer parts.
The easiest cave to go to is the Shadow Ruins.
If you search every room in a dungeon, there will be a map in one of them. This is extremely useful if you need to visit a dungeon more than once.
On Eugene's ship, near the end of the game, you will have to face Eugene's tank form. Bring Pepper Box and Gre Nade along in your party, equip Pepper's "Bullet parts", have at least four Green Mosses or Cosmo Fruits, and be at least level 75 for each character. Use Pepper Box as the main attacker in the battle, with her "Pepper Flash" attack, Mag as the main healer attacker with his "Recovery and Hand parts", and use Gre Nade to give Pepper Box the Green Mosses or Cosmo Fruits after she uses "Pepper Flash". If Eugene is still alive and you run out of FP for Pepper and you have no more Green Mosses or Cosmo Fruits, use Mag to attack with "Magna Rave" attack and the battle should be over soon. Also, use Mag as the main healer with Gre as the attacker with Lightning Spirit. Before doing that, use Mags Spray Parts to reduce the amount of FP for the attack. Also use Chain to attack. First, power him up with battle parts.