The following are known Action Replay Codes for Bases Loaded on Nintendo Entertainment System (NES).

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

• P2/CPU Never Scores
  0426:00
• Runs In The Inning Modifier P2/CPU
  0427:XX
  Note: May only affect the first inning.

Modifier Codes

Ignore the value shown in the HUD when using these codes.
• Outs Modifier
  0771:XX
• Strikes Modifier
  0772:XX
• Balls Modifier
  0773:XX