Cheats / Tips

UNLIMITED ITEMS
To do this trick you need the 'W-Item' command materia. You can get this from Midgar in Disk 2 if you run all the way down the subway tunnels. If you missed that you can also excavate it at 'Bone Village' on the 3rd CD. During a battle, select the W-Item command and pick the item you want to duplicate. Select who you want to use it on by pressing the circle button. You will now have to pick your second item. This can be any item as it doesn't matter seeing as your not going to use it. Don't press circle to select who you want to use it on this time, when the arrow pointing to a character appears, press the X button, as if to cancel the second item. Then press circle again, and X again and so on. So the process should be: W-Item, 1st item, circle to use, second item, X to cancel, second item, X to cancel... Every time you press circle, X the item you selected the first time will go up by 1, so you can have 99 of any item, providing you can select it during a battle.
Note: This works most of the time but I'm sure once it reduced the amount of items I had by 1 each time. This was when I was fighting the Ruby Weapon. Also, when I told my friend this trick, he reported to me that it had reduced the amount of items he had by 1 each time. I guess this is because some enemies reduce the amount and some increase the amount. This still nearly works 100% of the time though.

GAINING AP AND GIL QUICKLY
The best place to gain AP by far is in the swampy area in the North Cave. You can recognize this area by the yellow rocks in the back ground and the pools of water. Here, you will encounter small, red, bouncing balls (always three of them) occasionally. they are not at all difficult to kill and will give you 2400 APs! If you want to triple this amount, equip a weapon with triple growth. (eg. Cloud's 'Apocalypse' sword - found at the end of the Ancient Forest near Cosmo Canyon). If you do this, you will gain 7200 AP for the person who is wielding this weapon. Also, about 40% of the enemies here are 'Magic Pots' who seem impossible to kill. When they say: "Gimme Elixir", do as they say! You can get as many Elixirs as you want using the 'W-Item trick above'. Simply throw an Elixir onto it and then you can attack it as much as you like. You will gain 1000 Ability Points for each Magic Pot you kill.
For lots of money, equip a 'Gil Plus' independent materia (from the Gold Saucer Wonder square) and drive around in the desert around the Gold Saucer in the buggy (Disk 1 or beginning of Disk 2), and eventually you will come across a little cactus like enemy. Summon 'Choco/Mog' to beat him and he will leave lots of Gil!

RAISING CHOCOBOS STAMINA IN RACES
During any Chocobo race, if you find your low on stamina, hold L1, L2, R1 and R2 and your stamina bar will slowly build.

INFINITE 'SOURCES'
Get into the submarine and find the sunken plane. Although the enemies are quite tough here, you can use a 'Morph' materia on any of the enemies and if you successfully beat them with it, they will morph into either a 'Power Source', 'Magic Source', 'Speed Source', 'Guard Source' or 'Mind Source' depending on which enemy was morphed. This means that you can have as many of these as you want, as long as you can be bothered to fight!

THE FULL CURE MATERIA
To get this, enter the shop in Cosmo Canyon (the one on the far right). If you're on disk 3 you can now run through to the back of the shop to the section that was sealed off before. There you will find the Full Cure materia.

A NEW, EVEN BETTER WAY OF EARNING GIL!
Go to the area surrounding 'Bone Village' in the Northern Continent and run around until you encounter a squirrel ('Trickplay'). Don't attack it in any way. It will take ages to kill you because it keeps doing a move that heals you for about 500 HP ('Hot Springs'), so don't worry about it. Eventually, it will do a move where lots of money sprinckles around your players ('Gold Mountain'). Every time it performs this move, the amount of Gil you receive at the end of the fight will increase! You might do well to cast 'Haste' on the enemy to speed up the amount of times it does it. Also, if you wish, you can learn the enemy skill: 'L4 Suicide' from these geezers.
Tip courtesy of: 'Shdwcloud'

UNLIMITED RIBBONS AND TETRA-ELEMENTALS
To get as many 'Ribbon' accessories as you want, simply use the 'Morph' command on the 'Master Tonberries' (the ones with spinning stars above their heads) in the North Cave. For unlimited 'Tetra-Elemental' accessories, do the same for the cactus men you encounter on 'Cactus Island' - An uncharted Isle south of Cosmo Canyon.

TURN YOUR PARTY AROUND WHEN ATTACKED FROM BEHIND!
If you're ever attacked from behind and your party is facing in the wrong direction, tap L1 and R1 as if you were running away. When you release the buttons, your party will be facing the right way! Whether this stops the enemy attack doing more damage or not is yet to be seen, but it does stop your characters looking dopey!
Thanks to Mike Blake for this.

ALL LUCKY SEVENS ('ALL SEVEN FEVER')
If at any point in the game, you end up with 7777HP during a fight, your character will perform a series of hacks as if they were in a frenzy. You won't be able to control their actions, but each hack will do 7777 points of damage! After the battle, their HP will be reduced to 1, to ensure that you can't do this special attack more than once at a time. Unless your a complete wizz at adding and removing different materias, it's really tricky to get your characters level to 7777 when you want. If you're having trouble with this, here's a useful tip: Go to the 'Ancient Forest'. (near Cosmo Canyon where you find the 'Typoon' summon materia. - It's only accessible with a green, black or gold Chocobo, (see 'Dan's Chocobo guide') or if you've defeated the Ultima Weapon) Here, you will find 'venus fly trap' like plants which, if you walk into them, will cause physical damage whilst still on the field screen. Each time you get trapped in this, it reduces your HP by 99 points. This makes it easier to get 7777HP because all you have to do is get into a fight until you have about 70 as the last two digits of your HP. Then finish the fight. And finally walk into the trap seven times. Now the last two digits will be 77 and all you have to do is use various Potions / High Potions to get 7777 HP.
Note: You don't need to have 7777 as your maximum amount of HP, you just need to have 7777.

I realize I can't keep up with all the new codes and cheats. So check this place out for more.