The following are known GameShark Codes for High Heat Major League Baseball 2002 on Sony Playstation (PS1).

These codes were also known as Action Replay Codes outside the U.S. and later in the U.S. and are compatible with both devices.

• Infinite Outs
  800AE57C 0000
• 1 Out And You Are Out
  D00AE57C 0000
  800AE57C 0002
• 2 Outs And You Are Out
  D00AE57C 0000
  800AE57C 0001
• Infinite Balls
  800AE580 0000
• 1 Ball And You Walk
  D00AE580 0000
  800AE580 0003
• 2 Balls And You Walk
  D00AE580 0000
  800AE580 0002
• 3 Balls And You Walk
  D00AE580 0000
  800AE580 0001
• Infinite Strikes
  800AE584 0000
• 1 Strike And You Are Out
  D00AE584 0000
  800AE584 0002
• 2 Strikes And You Are Out
  D00AE584 0000
  800AE584 0001
• Home Team Score Modifier
  800AE58C ????
• Away Team Score Modifier
  800AE590 ????
• Runs Score Modifier
  8012F8FC 00??