There are two versions of the game. If the first code doesn't work, try the next code.
RHVA-A6WJ + AHVA-BE4L Pitches use less energy
RHST-A6Y8 + AHST-BE7A Pitches use less energy
RHVA-A6WJ + A5VA-BE4L Pitches use more energy
RHST-A6Y8 + A5ST-BE7A Pitches use more energy
RHVA-A6WJ + CDVA-BE4L Pitches use much more energy
RHST-A6Y8 + CDST-BE7A Pitches use much more energy
BMVA-AA4W Pitches use no energy
BMST-AA7J Pitches use no energy
AJ3T-AAD2 Batter walks on 2 balls
AJ3T-AAB2 Batter walks on 2 balls
AN3T-AAD2 Batter walks on 3 balls
AN3T-AAB2 Batter walks on 3 balls
AY3T-AAD2 Batter walks on 5 balls
AY3T-AAB2 Batter walks on 5 balls
A23T-AAD2 Batter walks on 6 balls
A23T-AAB2 Batter walks on 6 balls
AA3T-AA56 Batter never walks
AA3T-AA36 Batter never walks
HT3T-AA3N Any pitch taken is a ball
HT3A-AA9N Any pitch taken is a ball
4A3T-AA5L Any pitch taken is a strike
4A3T-AA3L Any pitch taken is a strike
9DTT-ACC4 Foul ball after 2 strikes is an out
9DSA-ACFT Foul ball after 2 strikes is an out
AXPA-AA4Y Foul bunt after 2 strikes is not an out
AXMT-AA7L Foul bunt after 2 strikes is not an out Open Game Codes
CJ3T-AN3L + FA3T-AA36 + FE3T-BA38 Taken strikes do not count
CJ3A-AN9L + FA3A-AA96 + FE3A-BA98 Taken strikes do not count
AAEA-AAAA + AAEA-AACC + ACPA-AAHY Regulation game lasts 1 inning
AADT-AAGA + AAEA-AAAC + ACNA-AACR Regulation game lasts 1 inning
AEEA-AAAA + AEEA-AACC + AGPA-AAHY Regulation game lasts 2 innings
AEDT-AAGA + AEEA-AAAC + AGNA-AACR Regulation game lasts 2 innings
AJEA-AAAA + AJEA-AACC + ALPA-AAHY Regulation game lasts 3 innings
AJDT-AAGA + AJEA-AAAC + ALNA-AACR Regulation game lasts 3 innings
ATEA-AAAA + ATEA-AACC + AWPA-AAHY Regulation game lasts 5 innings
ATDT-AAGA + ATEA-AAAC + AWNA-AACR Regulation game lasts 5 innings
A2EA-AAAA + A2EA-AACC + A4PA-AAHY Regulation game lasts 7 innings
A2DT-AAGA + A2EA-AAAC + A4NA-AACR Regulation game lasts 7 innings
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with computer
GKJT-AD8G + 9KJT-BCRE leading 1-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with computer
GKJT-AD2R + 1KJT-BCJN leading 1-0
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with computer
GKJT-AD8G + 3KJT-BCRE leading 2-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with computer
GKJT-AD2R + VKJT-BCJN leading 2-0
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with computer
GKJT-AD8G + 73JT-BCR leading 3-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with computer
GKJT-AD2R + Z3JT-BCJN leading 3-0
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with player 1
GKJT-AD8G + GVJT-AGGE leading 4-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with player 1
GKJT-AD2R + 6VJT-AGAN leading 4-0
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with player 1
GKJT-AD8G + 6BJT-BCRE leading 5-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with player 1
GKJT-AD2R + YBJT-BCJN leading 5-0
AFJT-BA76 + 2BJT-ACP8 + 9BJT-ACRC + Game starts with player 1
GKJT-AD8G + 3BJT-BCRE leading 6-0
AFJT-BA2E + 2BJT-ACJG + 9BJT-ACJL + Game starts with player 1
GKJT-AD2R + VBJT-BCJN leading 6-0
Exhibition Game Codes
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 2
GKJT-AD9A + 9KJT-BCR8 leading 1-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 2
GKJT-AD3J + 1KJT-BCKG leading 1-0
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 2
GKJT-AD9A + 3KJT-BCR8 leading 2-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 2
GKJT-AD3J + VKJT-BCKG leading 2-0
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 2
GKJT-AD9A + 73JT-BCR8 leading 3-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 2
GKJT-AD3J + Z3JT-BCKG leading 3-0
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 1
GKJT-AD9A + 6VJT-AGG8 leading 4-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 1
GKJT-AD3J + 6VJT-AGB leading 4-0
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 1
GKJT-AD9A + 6BJT-BCR8 leading 5-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 1
GKJT-AD3J + YBJT-BCKG leading 5-0
AFJT-BA80 + 2BJT-ACR2 + 9BJT-ACR6 + Game starts with player 1
GKJT-AD9A + 3BJT-BCR8 leading 6-0
AFJT-BA28 + 2BJT-ACKA + 9BJT-ACKE + Game starts with player 1
GKJT-AD3J + VBJT-BCKG leading 6-0