Gameshark codes:they are tried and tested

8009D2A6 0000 - Save Anywhere
8009D260 FFFF - Unlimited Gil
8009D7D8 FFFF - Always gives you 65535 EXP points after battle
8009D7DC C350 - Always gives you 50,000 AP points after battle
8009CE62 0100 - Max out any Materia on 1st Materia Item slot
8009D3D2 270F - Have 9999 Gold points at the Golden Saucer
8009D3D8 C350 - 50,000 Battle points at the Golden Saucer
8007173C 0000 - No Random Battles
8011627C 0000 - No Random Battles on the World Map
8009D7D8-E0FF 8009D7DA-05F5 - For 99999999 exp after every fight

Limit Attacks Codes

1st Character Limit Bar Always Full = 800F5E6A 00FF
2nd Character Limit Bar Always Full = 800F5E9C 00FF
3rd Character Limit Bar Always Full = 800F5ED2 00FF

These are the item codes that you must use in slots. There are 320 slots. To put a particular item in a slot, use these links. 'Item Modifier Codes Part 1' 'Item Modifier Codes Part 2'

600 = Potion 6A0 = Gatling Gun
601 = Hi-Potion 6A1 = Assault Gun
602 = X-Potion 6A2 = Cannon Ball
603 = Ether 6A3 = Atomic Scissorss
604 = Turbo Ether 6A4 = Heavy Vulcan
605 = Elixir 6A5 = Chainsaw
606 = Megalixir 6A6 = Microlaser
607 = Phoenix Down 6A7 = A.M Cannon
608 = Antidote 6A8 = W Machine Gun
609 = Soft 6A9 = Drill Arm
60A = Maiden's Kiss 6AA = Solid Bazooka
60B = Cornucopia 6AB = Rocket Punch
60C = Echo Screen 6AC = Enemy Launcher
60D = Hyper 6AD = Pile Bunker
60E = Tranquilizer 6AE = Maximum Ray
60F = Remedy 6AF = Missing Score
610 = Smoke Bomb 6B0 = Mythril Clip
611 = Speed Drink 6B1 = Diamant Pin
612 = Hero Drink 6B2 = Silver Barrette
613 = Vaccine 6B3 = Gold Barrette
614 = Grenade 6B4 = Adaman Clip
615 = Shrapnel 6B5 = Crystal Comb
616 = Bomb's Right Arm 6B6 = Magic Comb
617 = Hourglass 6B7 = Platinum Barrette
618 = Kiss of Death 6B8 = Centclip
619 = Spider Web 6B9 = Hairpin
61A = Dream Powder 6BA = Seraph Comb
61B = Mute Mask 6BB = Behemoth Horn
61C = War Gong 6BC = Spriggan Clip
61D = Leco weed 6BD = Limited Moon
61E = Fire Fang 6BE = Guard Stick
61F = Fire Veil 6BF = Mythril Rod
620 = Antarctic Wind 6C0 = Full Metal Staff
621 = Ice Crystal 6C1 = Striking Staff
622 = Bolt Plume 6C2 = Prism Staff
623 = Swift Bolt 6C3 = Aurora Rod
624 = Earth Drum 6C4 = Wizard Staff
625 = Earth Mallet 6C5 = Wiser Staff
626 = Deadly Waste 6C6 = Fairy Tale
627 = Molbor's Tentacles 6C7 = Umbrella
628 = Stardust 6C8 = Princess Guard
629 = Vampire Fang 6C9 = Spear
62A = Ghost Hand 6CA = Slash Lance
62B = Basilisk Claw 6CB = Trident
62C = Light Curtain 6CC = Mast Ax
62D = Lunar Curtain 6CD = Partisan
62E = Mirror 6CE = Viper Halberd
62F = Holy Torch 6CF = Javelin
630 = Bird Wing 6D0 = Grow Lance
631 = Dragon Scales 6D1 = Mop
632 = Impaler 6D2 = Dragon Lance
633 = Shrivel 6D3 = Scimitar
634 = Eye drop 6D4 = Flayer
635 = Molotov 6D5 = Spirit Lance
636 = S-mine 6D6 = Venus Gospel
637 = 8 Inch Cannon 6D7 = 4-point Shuriken
638 = Gravibal 6D8 = Boomerang
639 = T/S Bomb 6D9 = Pinwheel
63A = Ink 6DA = Razor Ring
63B = Dazrs 6DB = Hawkeye
63C = Dragon Fang 6DC = Crystal Cross
63D = Cauldron 6DD = Wind Slash
63E = Sylkis Greens 6DE = Twin Viper
63F = Reagan Greens 6DF = Spiral Shuriken
640 = Mimett Greens 6E0 = Supperball
641 = Curiel Greens 6E1 = Magic Shuriken
642 = Pahsana Greens 6E2 = Rising Sun
643 = Tantal Greens 6E3 = Oritsuru
644 = Krakka Greens 6E4 = Conformer
645 = Gysahl Greens 6E5 = Yellow Megaphone
646 = Tent 6E6 = Green Megaphone
647 = Power Source 6E7 = Blue Megaphone
648 = Guard Source 6E8 = Red Megaphone
649 = Magic Source 6E9 = Crystal Megaphone
64A = Mind Source 6EA = White Megaphone
64B = Speed Source 6EB = Black Megaphone
64C = Luck Source 6EC = Silver Megaphone
64D = Zeio Nut 6ED = Trumpet Shell
64E = Carob Nut 6EE = Gold Megaphone
64F = Porov Nut 6EF = Battle Trumpet
650 = Pram Nut 6F0 = Starlight Phone
651 = Lasan Nut 6F1 = HP Shout
652 = Saraha Nut 6F2 = Quicksilver
653 = Luchile Nut 6F3 = Shotgun
654 = Pepio Nut 6F4 = Shortbarrel
655 = Battery 6F5 = Lariat
656 = Tissue 6F6 = Winchester
657 = Omnislash 6F7 = Peacemaker
658 = Catastrophe 6F8 = Buntline
659 = Final Heaven 6F9 = Long Barrel R
65A = Great Gospel 6FD = Outsider
65E = Highwind 6FE = Death Penalty
65F = 1/35 Soldier 6FF = Masamune
660 = Super Sweeper 700 = Bronze Bangle
661 = Masamune Blade 701 = Iron Bangle
662 = Save Crystal 702 = Titan Bangle
663 = Combat Diary 703 = Mythril Armlet
664 = Autograph 704 = Carbon Bangle
665 = Gambler 705 = Silver Armlet
666 = Desert Rose 706 = Gold Armlet
667 = Earth Harp 707 = Diamond Bangle
668 = Guide Book 708 = Crystal Bangle
709 = Platinum Bangle
70A = Rune Armlet
70B = Edincoat
70C = Wizard Bracelet
70D = Adaman Bangle
70E = Gigas Armlet
70F = Imperial Guard
710 = Aegis Armlet
711 = Fourth Bracelet
712 = Warrior Bangle
713 = Shinra Beta
714 = Shinra Alpha
715 = Four Slot
716 = Fire Armlet
717 = Aurora Armlet
718 = Bolt Armlet
719 = Dragon Armlet
71A = Minerva Band
71B = Escort Guard
71C = Mystile
71D = Ziedrich
71E = Precious Watch
71F = Chocobracelet
680 = Buster Sword 720 = Power Wrist
681 = Mythril Saber 721 = Protect Vest
682 = Hardedge 722 = Earring
683 = Butterfly Edge 723 = Talisman
684 = Enhance Sword 724 = Choco Feather
685 = Organics 725 = Amulet
686 = Crystal Sword 726 = Champion Belt
687 = Force Stealer 727 = Poison Ring
688 = Rune Blade 728 = Toughness Ring
689 = Murasame 729 = Circlet
68A = Nail Bat 72A = Star Pendant
68B = Yoshiyuki 72B = Silver Glasses
68C = Apocalypse 72C = Headband
68D = Heaven's Cloud 72D = Fairy Ring
68E = Ragnarok 72E = Jewel Ring
68F = Ultima Weapon 72F = White Cape
690 = Leather Glove 730 = Sprint Shoes
691 = Metal Knuckle 731 = Peace Ring
692 = Mythril Claw 732 = Ribbon
693 = Grand Glove 733 = Fire Ring
694 = Tiger Fang 734 = Ice Ring
695 = Diamond Knuckle 735 = Bolt Ring
696 = Dragon Claw 736 = Tetra Elemental
697 = Crystal Grab 737 = Safety Bit
698 = Motor Drive 738 = Fury Ring
699 = Platinum Fist 739 = Curse Ring
69A = Kaiser Knuckle 73A = Protect Vest
69B = Work Glove 77B = Cat's Bell
69C = Powersoul 73C = Reflect Ring
69D = Master Fist 73D = Water Ring
69E = God's Hand 73E = Sneak Glove
69F = Premium Heart 73F = HypnoCrown

For the materia codes, it works the same way as the item codes. But there are more options. You can master all materia in a slot, or place a particular materia in a slot and master it at your own will. There are 200 slots. 'Master Materia Modifier Codes' 'Materia Modifier Codes' 'Master Materia Codes'

00 = MP Plus 2E = (glitch)
01 = HP Plus 2F = (glitch)
02 = Speed Plus 30 = Master Command
03 = Magic Plus 31 = Fire
04 = Luck Plus 32 = Ice
05 = XP Up 33 = Earth
06 = Gil Plus 34 = Lightning
07 = Enemy Away 35 = Restore
08 = Enemy Lure 36 = Heal
09 = Chocobo Lure 37 = Revive
0A = Pre-Emptive 38 = Seal
0B = Long Range 39 = Mystify
0C = Super Enemy-All 3A = Transform
0D = Counter Attack 3B = Exit
0E = Slash All 3C = Poison
0F = Double Cut 3D = Gravity
10 = Cover 3E = Barrier
11 = Underwater
12 = HP/MP Switch 40 = Comet
13 = W-Magic 41 = Time
14 = W-Summon
15 = W-Item
44 = Destruct
17 = Enemy-All 45 = Contain
18 = Command Counter 46 = Full Cure
19 = Magic Counter 47 = Shield
1A = MP Turbo 48 = Ultima
1B = MP Absorb 49 = Master Magic
1C = HP Absorb 4A = Choco/Mog
1D = Elemental 4B = Shiva
1E = Added Effect 4C = Ifrit
1F = Sneak Attack 4D = Titan
20 = Final Attack 4E = Ramuh
21 = Added Cut 4F = Odin
22 = Added Steal 50 = Leviathan
23 = Quadra Magic 51 = Bahamut
24 = Steal 52 = Kjata
25 = Sense
53 = Alexander 54 = Phoenix
27 = Throw 55 = Neo Bahamut
28 = Morph 56 = Hades
29 = Deathblow 57 = Tupon
2A = Manipulate 58 = Bahamut ZERO
2B = Mimic 59 = Knights Of The Round
2C = Enemy Skill 5A = Master Summon

Summons:where to get them

· Choco Mog
Talk to the Chocobo at the front of the farm and reply "Waaark".
· Shiva
At the Junon coast after saving Pricilla.
· Ifrit
On the boat after beating Jenova-BIRTH.
· Ramuh
Lying on the floor in the Chocobo Jockey waiting room.
· Titan
In the wreckage of the Gongaga reactor.
· Odin
Defeat the Lost Number enemy inside the Shinra mansion safe.
· Leviathan
Defeat everyone in the Pagoda in Wutai.
· Kjata
Walk to the second area in the Sleeping Forest and it will be floating around. Wait in the spot where it is first seen, then tap [Action] to take it. Do not use against fire absorbing enemies.
· Alexander
After the snowboarding sequence, find the hot spring and touch it. Then find the area where you leave markers and keep to a straight path. Find the hut there and enter. Leave through the downward facing door. Go right, find the cave and talk to the person inside. Defeat her and the materia will fall from the sky.
· Bahamut
Defeat the red dragon at the Cetra shrine.
· Typhoon
Defeat the Ultimate Weapon a few times until it dies. A crate will remain. Go to the jelly object on top of the mountain and its at the end.
· Neo Bahamut
After Geas cliff; just pick it up.
· Phoenix
Found while collecting the Huge Materia at Mount Condor. After defeating the enemies and the man sends you out to check on the condor egg, it can be found on the ground.
· Hades
On the wreckage in the Gelinka.
· Bahamut ZERO
Collect the four Huge Materia. Store them in the Observatory, then look closely at the blue Huge Materia.
· Knights Of The Round
Found on the island only on the final disc. It is unmarked at the top right of the map, and requires a Gold Chocobo to reach it.