The following are known Action Replay Codes for Ken Griffey Jr. Presents Major League Baseball on Super Nintendo (SNES).

These codes are for the U.S. version of the game.

• 1 Ball And You Walk
  80A5ED01
• 2 Balls And You Walk
  80A5ED02
• 1 Strike And You Are Out
  80A5F501
• 2 Strikes And You Are Out
  80A5F502
• Invisible Baserunners
  80DA3701
• Cannot Walk A Player
  8491E3A9
• Cannot Strike Out
  8491FDAD
• Computer Cannot Score Ken
  80BFC7AD
  80BFE8AD
  849C4DA9
• No Outs Except Strike Outs
  84C8CEAD
  84C8D1AD