Duplicate Items
To duplicate any item which can be equipped in the left or right hand (such as a shield, sword, rod, axe, etc...), first get into battle, making sure that one of your characters has the item that you want duplicated equipped. when that character's is prompted to take an action, go to your item list, select any blank space in it, and then select the item you want duplicated(which must be in the left or right hand). This will switch the item with the blank space in the item list. Now leave the item list and then run away from battle. when you try to re-equip the item outside of battle, there will be two of them in your hand at once. Remove the item from your hand again and there will now be two of them in your item list.

This tactic is especially useful in building up money quickly near the middle of the game, and is also useful when you get the ninja. Just duplicate the drain spear or excalibur sword a few times, and throw the extras as darts. you'll do outrageous amounts of damage, and since it is (DMG), the dart attack ignores the target's armor. This makes for a good way to defeat bosses. unfortunately, you can't duplicate the spoon dart, but if your ninja is above level 50, the excalibur sword is practically just as effective. You can pick up the excalibur sword as soon as the big whale spaceship is available to you. I find that a few excalibur darts will make short work out of bahamut, the cpu, odin, 'plague', etc... never leave home without them!

Equip any Item
To equip any weapon or shield(that your ninja can SNEAK) on any character, first make sure that you have none of the item that you plan to SNEAK already in your inventory. Now, enter battle and SNEAK from an enemy that will give you a weapon or shield. The next ally available to take an action can now use the ITEM option to equip the stolen weapon or shield, regardless of whether or not that ally belongs to the right character class. This trick only works for the action immediately following SNEAK, so you should use the FORM option before entering battle to set things up right so that the desired character follows after your ninja. if you decide to remove the stolen equipment at a later time, you may not put it back on unless that character could normally do so. In some cases immediately following the battle in which you execute this trick, your statistics may not reflect the new piece of equipment. All you need to do in this case is go to the equip window, and then you come back to the statistics window - everything will be alright. During the battle in which you stole the equipment, if you try using the equipment as an item, strange things will happen, the effect usually being guaranteed elimination of one target. In subsequent battles, the equipment will act normally if used as an item.

This trick is actually not as useful as it sounds, as there isn't much good stuff that you can SNEAK. What I find most useful is giving the caller a silver shield

Adamant Armor
If you want to find that damned PINK tail(in order to get the ADAMANT armor - armor which is so unbelievably powerful that it's not even funny), prepare to be frustrated. A pink tail can only be obtained from beating a PINKPUFF group, and the only place that you will ever find a pinkpuff is in a tiny room in B5 of the Lunar Subterrain. To find this room, it is best to start from the last chance saving spot before ZEROMUS on B7. Exit this room and go the left, then back up two floors so that you will be on the bottom of the screen on B5. There will be a small room immediately to the right, and a stairway a little bit further to the left. Enter the room on the right. In this room, there should be a treasure chest on the far right wall which contains a CABIN. Wander around this room for an eternity and run from everything which is not a pinkpuff(if you have a game genie, there exists an item to summon a pinkpuff immediately). there is a small chance that you will win a PINK(tail) from fighting pinkpuffs. in the event that you get lucky and recieve the tail, you can take it to the small dude who collects tails in the mine southeast of Silvera

Weaknesses
Make use of weakness multipliers whenever possible. Often, an area will contain monsters that are weak against the items you can find there. for instance, the path to the lunar core has lots of dragons. Near the entrance you'll have the opportunity to sneak artemis arrows from karys. Take 40 or 50 and shoot them at whatever dragons cross your path. It will make a big difference

Misc. Tips
If you know that one of your party members is going to leave you, remove all their equipment before they do. Anything they have when they leave you, you will never see again. One good example of this is making sure that you keep at least one defense sword in your item list before your dragoon betrays you in the sealed cave. Later, you can re-equip him with it, which will be an improvement over the gungnir spear. At the very least, you can resell all the stuff your old characters used to have

I find that it's convienent to move the -sort- option to the top of the item list. moving around items is something you're probably going to do a lot, so you might as well have the option where you can use it

Some monsters will only attack if you attack them first (such as behemoth). So if you only attack with your strongest characters, and have the rest parry, you will take less damage. Also, some monsters will constantly use elemental special attacks if they are alone. If you are not well protected, you could easily lose your entire party in seconds. So, if you run into one such monster in the company of other monsters, try to kill the ones with the special attacks first, or get them all at once with a strong magic spell

Secret Passages Info
Secret passages are sometimes indicated by dark gray against the black of the walls. You may not be able to see them if the brightness on your TV is turned down. Some secret passages of particular usefulness are in the village of mist, inside a burned out fireplace. You can find the rod of change and a tiara helmet there. Save the tiara for your reunion with your wh.wiz, although ultimately it will be put to the best use by your caller. There are also secret pitfalls in castle eblan, secret passages in the sylvan cave, cave of summoned monsters, the lunar subterrain and many other places.

The Crystal Sword
One exception to this pattern is an invisible bridge on the left side of B6 of the Lunar Subterrain for which there is no indication of a secret passage. This bridge leads ultimately to a saving point, and the WYVERN boss who guards the awesome CRYSTAL SWORD. Once you get across the bridge, just keep following the secret passageways, eventually, you will reach the crystal sword.