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

• Level 255
  0DB60D80
• This is a weird sound test. Start a new game and you will go to a black screen with some weird sounds & music.
  809AE3FF
• Start at Level 9
  C1D8EC09
• Start at Level 15
  C1D8EC0F
• Start at Level 50
  C1D8EC32
• Start at Level 100
  C1D8EC63
• Start at Level 255
  C1D8ECFF
• Start with an insanely strong character
  C1D8F1FF
• Start with lots of HP
  C1D90A99
• Start with lots of PSI
  C1D91B99
• You get Level 99 after a your first battle
  C1D9FBFF
• You gain at least 1 Level after each battle
  C1F9981D