The following are known Action Replay Codes for Cyber Stadium Series: Base Wars on Nintendo Entertainment System (NES).

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

• High Score P1
  0445:63
• No Score P2/CPU
  0446:00

These Codes Affect Both Teams

• Innings Modifier
  044A:XX
• Strikes Modifier
  0068:XX
• Balls Modifier
  0069:XX
• Outs Modifier
  006A:XX