The following are known GameShark Codes for MLB 2000 on Sony Playstation (PS1).

• Joker Command
  D009DA56 ????
• Home Team Score Modifier
  3001D416 00??
• Away Team Score Modifier
  3001D458 00??
• Home Team Hit Modifier
  3001D417 00??
• Away Team Hit Modifier
  8001D459 00??
• Infinite Creation Points
  801E8B28 00FF
• Infinite Pitch Type Creation Points
  801E8B2C 00FF
• Infinite Strikes
  800B8966 0000
• 1 Strike And You Are Out
  D00B8966 0000
  800B8966 0002
• 2 Strikes And You Are Out
  D00B8966 0000
  800B8966 0001
• Infinite Balls
  800B8968 0000
• 1 Ball And You Walk
  D00B8968 0000
  800B8968 0003
• 2 Balls And You Walk
  D00B8968 0000
  800B8968 0002
• 3 Balls And You Walk
  D00B8968 0000
  800B8968 0001
• Infinite Outs
  800B8964 0000
• 1 Out And You Are Out
  D00B8964 0000
  800B8964 0002
• 2 Outs And You Are Out
  D00B8964 0000
  800B8964 0002
• 0 Outs, 0 Strikes & 3 Balls
  D009DA56 0005
  800B8964 0000
  D009DA56 0005
  800B8966 0000
  D009DA56 0005
  800B8968 0003
  Note: Press L1 + L2
• 2 Outs, 2 Strikes, & 0 Balls
  D009DA56 000A
  800B8964 0002
  D009DA56 000A
  800B8966 0002
  D009DA56 000A
  800B8968 0000
  Note: Press R1 + R2