The following are known Action Replay Codes for Final Fantasy III on Nintendo DS (NDS).

Game ID: AFFE-7A99FB3C

• Infinite Gil
  0209ac90 05f5e0ff
• 1 Hit Kills Enemies
  021d34a4 00000000
  021d3644 00000000
  021d37e4 00000000
• Press L+X to Save Anywhere
  94000130 fdff0000
  121348fc 00000008
  d2000000 00000000

Character 1 Codes

• Max/Infinite Health
  020993f0 0000270f
  020993f4 0000270f
• Quick Level Up
  020993e8 05f5e0ff
• Character in Party
  220993d8 00000001
• Character Not in Party
  220993d8 00000000
• Status Always Normal
  2209941b 00000000

Character 2 Codes

• Max/Infinite Health
  020996dc 0000270f
  020996e0 0000270f
• Quick Level Up
  020996d4 05f5e0ff
• Character in Party
  220996c4 00000001
• Character Not in Party
  220996c4 00000000
• Status Always Normal
  22099707 00000000

Character 3 Codes

• Max/Infinite Health
  020999c8 0000270f
  020999cc 0000270f
• Quick Level Up
  020999c0 05f5e0ff
• Character in Party
  220999b0 00000001
• Character Not in Party
  220999b0 00000000
• Status Always Normal
  220999f3 00000000

Character 4 Codes

• Max/Infinite Health
  02099cb4 0000270f
  02099cb8 0000270f
• Quick Level Up
  02099cac 05f5e0ff
• Character in Party
  22099c9c 00000001
• Character Not in Party
  22099c9c 00000000
• Status Always Normal
  22099cdf 00000000