The following are known Action Replay Codes for Final Fantasy III on Super Nintendo Entertainment System (SNES).

• Some bosses are on the Velet
  C0C2F60C
• Instant airship
  C0C8340C
• Sprint Shoes
  C0CE2E00
• Walk through walls anywhere in most houses, buildings or whatever. Does not work well outside in a town.
  C0D04FFF
• Leo and Kefka
  C0F07E07
• Become Level 99 after one battle
  C28F93FF
• No random encounters
  C28F9C14
• Hit twice
  C28F9C1C
• Party hits twice
  C28F9CCC
• All relics, even cursed ones
  C28F9ECC
• Instant Sprint Shoes and Moggle Charm
  C28FA5CC
• Instant freeze and float
  C28FB5CC
• Always have Haste, Float and Regen
  C28FB60B
• Everyone has a hidden Economizer (Inside of battle only)
  C2D74400
• Get Gold
  C2DDE8CC
• Get Illumina or Ragnarok after battle depending who you fight, plus a lot of random items
  C2DF0CCC
• Give items
  C2DF2CCC
• All relics equipped
  C2DF9ECC
• Conversion
  C2DFA80A
• Learn all spells of equipped Esper after one battle
  C2E050FF
• Learn all spells after 1 battle
  C2E13BE4
• Learn all spells after 1 battle
  C2E53BE4
• Equip items again and again (In other words, infinite equipment)
  C39DAEFF
• Items can be used infinity
  C39DB3EA
• All items are free
  C3BBA564
• Everyone has a hidden Economizers (Outside of battle only)
  C3D13400
• Tonics gives 240 HP
  D8EB44F0
• Tincture gives 240 MP
  D8EB9EF0
• Terra starts with 276 HP
  EDFCA0FF
• Terra starts with menu item one changed
  EDFCA21B
• Changes Terra’s Stamina
  EDFCA8FF
• Start Terra with 200 HP
  EDFCAF1C
• Start Terra with Man-Eater equipped
  EDFCAF06
• Start Terra with Blizzard equipped
  EDFCAF0E
• Start Terra with Enhancer equipped
  EDFCAF13
• Start Terra with Excalibur equipped
  EDFCAF18
• Start Terra with Illumina equipped
  EDFCAF1A
• Start Terra with Tempest equipped
  EDFCAF2E
• Start Terra with Mithril Shield equipped
  EDFCB05C
• Start Terra with Gold Shield equipped
  EDFCB05D
• Start Terra with Fire Shield equipped
  EDFCB060
• Start Terra with Ice Shield equipped
  EDFCB061
• Start Terra with Hairband equipped
  EDFCB16A
• Start Terra with Red Cap equipped
  EDFCB178
• Start Terra with Mystery Veil equipped
  EDFCB179
• Start Terra with Circlet equipped
  EDFCB17A
• Start Terra with Silk Robe equipped
  EDFCB288
• Start Terra with Mithril Vest equipped
  EDFCB289
• Start Terra with White Dress equipped
  EDFCB28B
• Start Terra with Force Armor equipped
  EDFCB294
• Start Terra with Genji Armor equipped
  EDFCB29A
• Terra is equiped with a Cursed Ring in relic slot 1
  EDFCB3C2
• Terra is equiped with Illumina in her weapon slot
  EDFCBF1A
• Start with 255 Offering relics
  7E186AD3
• Get 99 of the item in the first item slot
  7E196963
• Any item placed in the final row will have 99. You can move it and it will still have 99.
  7E1A6763
• Get 99 of all items
  C2DF2016
• Earn weapons
  C2DF25CC
• Items after battle
  C2DF25CC
  C2DF28CC
  C2DF2CCC
  C2DF2D03
• 34 HP for Terra
  2097E160
• All weapons equipped and Gogo and Terra in the paryy at level 99
  4FC827A0
• Have all weapons and all start at level 99 for Sabin, Terra and Gogo
  4FC827A0
  8CDAEECC
• Everyone starts at level 99
  7E161300
  EE001300
• Everyone starts at level 99
  7E1613EE
• 1st command
  7E1616FF
• Speed
  7E161BA0
• Start with Moogle Charm equipped on Terra
  7E162300
  DE082300
• Start with Moogle Charm equipped on Terra
  7E1623DE
  7E186A00
• Start with 255 Offering Relics
  D3006A00
  7E186A00
  D3086A00
• Adds all Espers to your Esper List
  7E1A69FF
  7E1A6AFF
  7E1A6BFF
  7E1A6CFF
• Gives you 9999 HP to Character #1. Change the digits to 7A, 7B for #2, 7C, 7D for #3, and 7E, 7F for #4.
  7E2E780F
  7E2E7927
• Sets Characters #1’s HP to multiples of 255. The way it works is if the max HP of the first person is between 1 and 255, it will be 255. If it is 256 to 511, it will be 511. If it is 512 to 767, etc… The last digits can be changed for the other 3 people. 7A, D5, F6 for #2, 7C, F5, F8 for #3, and 7E, 15, FA for #4.
  7E2E78FF
  7E2EB5FF
  7E3BF4FF