The following are known Action Replay Codes for World Series Baseball on SEGA Genesis / Mega Drive (Genesis).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay

• Strikes Modifier
  FFA301:XX
• Outs Modifier
  FFA303:XX
• Team 1 Score in 1st Inning
  FFA306:XX
• Team 1 Score in 2nd Inning
  FFA307:XX
• Team 1 Score in 3rd Inning
  FFA308:XX