Double attack:  Attack a monster from behind to give your characters two attacks in a row.

Save money:  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.

Unlimited Naolin Gold:  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.

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.

Spray parts:  Go to the Shade Ruins to get the spray parts.

Hammer parts:  Go to the Sheol Ruins to get the hammer parts.

Easiest cave:  The easiest cave to go to is the Shadow Ruins.

Defeating Eugene's second form:  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.

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.

Unlimited Items  -  Enter Museville (the second town). Beat one or more predetermined dungeons, pick a floor with good stuff, get it, then go to town by exiting through the entrance or warp station. When you get back to town go to the same dungeon and the items should still be there. No important items will reappear (upgrade kits, Cyframe parts etc).