The following are known Action Replay Codes for Backyard Baseball ’09 on Nintendo DS (NDS).

Game ID: YABE-37B50EC6

Ball Codes
• Never Walk
  22156b8b 00000000
• 1 Ball = Walk
  22156b8b 00000003

Strike Codes

• Never Strike Out
  22156b8c 00000000
• 1 Strike = Out
  22156b8c 00000002
• L + Select = 0 Strikes / R + Select = 2 Strikes
  94000130 fdfb0000
  22156b8c 00000000
  d2000000 00000000
  94000130 fefb0000
  22156b8c 00000002
  d2000000 00000000

Out Codes

• Never Out
  22156b8d 00000000
• 1 Out = Change
  22156b8d 00000002
• L + Select = 0 Outs / R + Select = 3rd Out
  94000130 fdfb0000
  22156b8d 00000000
  d2000000 00000000
  94000130 fefb0000
  22156b8d 00000002
  d2000000 00000000

Top Team Score

• Never Score
  22156e76 00000000
• Max Score
  22156e76 00000064

Bottom Team Score

• Never Score
  22156c3a 00000000
• Max Score
  22156c3a 00000064