At the stadium selection screen, press L2, L1, R1, R2, L1, R1, R2. If you entered the code correctly, the phrase "Triple Play 99" will be spoken. Now the Colliseum, Neo-Vancouver, and Anytown USA stadiums will be selectable. Note: Home runs hit in the Neo-Vancouver stadium can travel over 900 feet. Alternatively, press L2, R1, L1, R2 at the stadium selection screen.
While in the batter's box, hold L1 + L2 + R1 + R2 and press Triangle, Square, Triangle, Circle, X, Square, Left, Right. If you entered the code correctly, you will hear a thump. -From: JCW1210@aol.com
While on the pitching mound, hold L1 + L2 + R1 + R2 and press Up, Down, Triangle, Square, Triangle, Circle, X, Square. If you entered the code correctly, you will hear a thump. -From: JCW1210@aol.com
When the opening FMV sequences begins to play, press [Triangle + Up] ten times. Then, the player in the center field position will appear in the batting lineup twice, as a designated hitter.
Enter the "Create A Player" option and enter "Erik Kiss" as a name. This player will hit a homerun every time he is at bat and connects with the ball.
While running around the bases after hitting a home run, press Square or Triangle to hear air horns, X to hear the organ, or Circle to hear whistles.
While playing a game, hold L1 + L2 + R1 + R2 and press Right, Left, Up, Down, Right, Left. If you entered the code correctly, you will hear a thump. Then, use one of the following actions to control the camera:
| Action | What It Does |
| D-pad | Move |
| L1 + D-pad | Move faster |
| R1 + D-pad | Turn |
| L2 | Zoom out |
| R2 | Zoom in |
| Triangle | Higher view |
| Square | Lower view |
Enter one of the following codes while playing a game to hear the corresponding crowd sound. If you entered the code correctly, you will hear a thump.
Hold L1 + L2 + R1 + R2 and press X, Down(2), X.
Hold L1 + L2 + R1 + R2 and press Triangle, X(2), Triangle.
Hold L1 + L2 + R1 + R2 and press Square, Left(2), Square.
Hold L1 + L2 + R1 + R2 and press Circle, Right(2), Circle.
Hold L1 + L2 + R1 + R2 and press Triangle, Up(2), Triangle.
Enter one of the following codes while playing a game to hear the corresponding announcement. If you entered the code correctly, you will hear a thump.
Hold L1 + L2 + R1 + R2 and press Left, Square, Right, Circle.
Hold L1 + L2 + R1 + R2 and press Up, Triangle, Right, Circle.
Hold L1 + L2 + R1 + R2 and press Left, Square, Up, Triangle.
Hold L1 + L2 + R1 + R2 and press Down, X, Right, Circle.
Hold L1 + L2 + R1 + R2 and press Circle, Right, Square, Left.
Hold L1 + L2 + R1 + R2 and press X, Down, Triangle, Up.
Hold L1 + L2 + R1 + R2 and press Up, Triangle, Down, X.
While playing a game, hold L1 + R1 + L2 + R2 and enter one of the following codes to hear the corresponding programmer introduce the game. If you entered the code correctly, you will hear a thump.
| Programmer | Code |
| Adrienne Travica | Left, Square, Left, Right |
| Agathat Kuzniak | Up, Triangle, Up, Down |
| Anne Fouron | Right, Circle, Right, Down |
| Anne Geiger | Left, Square, Left, Square |
| Bob Silliker | Left(4) |
| Brent Nielsen | Up, Triangle, Up(2) |
| Brett Marshall | Down, Triangle, Down(2) |
| Carolyn Cudmore | Down, Triangle, Down, Triangle |
| Chuck Osieja | Up, Triangle, Up, Square |
| Darron Stone | Right(4) |
| Duncan Lee | Left, Square, Left, Triangle |
| Edwin Gomez | Left, Square, Left, X |
| Eric Kiss | Down(4) |
| Frank Faugno | Right, Circle, Right, Triangle |
| Gary Lam | Up, Triangle, Up, Circle |
| Jason Lee | Down, Triangle, Down, Right |
| Jeff Coates | Right, Circle, Right, X |
| Jen Cleary | Up(4) |
| Jon Spencer | Up, Triangle, Up, Triangle |
| Kenneth Newby | Right, Circle, Right(2) |
| Kirby Leung | Right, Circle, Right, Square |
| Louis Wang | Down, Triangle, Down, Up |
| Mark Dobratz | Down, Triangle, Down, Left |
| Mark Liljefors | Right, Circle, Right, Left |
| Michael J. Sokyrka | Right, Circle, Right, Circle |
| Mike "Swanny" Swanson | Up, Triangle, Up, Right |
| Mike Rayner | Triangle(4) |
| Mike Sheath | Right, Circle, Right, Up |
| Pauline Moller | Up, Triangle, Up, Left |
| Rick Falck | Down, Triangle, Down, X |
| Rob Anderson | Square(4) |
| Ryan Pearson | X(4) |
| Stan Tung | Circle(4) |
| Stephen Gagno-Cody | Left, Square, Left(2) |
| Steve Rechtschaffner | Up, Triangle, Up, X |
| Vanessa Gonwick | Left, Square, Left, Down |
| Wendell Harlow | Left, Square, Left, Up |
| Yanick Lebel | Left, Square, Left, Circle |
| Joker Command | D00892B6 ???? |
| Infinite Balls | 8008ECB0 0000 |
| 3 Balls And You Walk | D008ECB0 0000 8008ECB0 0001 |
| 2 Balls And You Walk | D008ECB0 0000 8008ECB0 0002 |
| 1 Ball And You Walk | D008ECB0 0000 8008ECB0 0003 |
| Infinite Strikes | 3008ECAF 0000 |
| 2 Strikes And You Are Out | D008ECAF 0000 3008ECAF 0001 |
| 1 Strike And You Are Out | D008ECAF 0000 3008ECAF 0002 |
| Infinite Outs | 3008ECB1 0000 |
| 2 Outs And You Are Out | D008ECB0 0000 3008ECB1 0001 |
| 1 Out And You Are Out | D008ECB0 0000 3008ECB1 0002 |
| Home Team Score Modifier | 3008E9C5 00?? |
| Away Team Score Modifier | 3008E9C1 00?? |
| Character Creation Codes | |
| Max Hit Control (Small) | 8010E134 00FF |
| Max Hit Control (Large) | 8010E134 00FF |
| Max Contact Change (Small) | 8010E1B4 00FF |
| Max Contact Change (Large) | 8010E1B6 00FF |
| Max Batting Power (Small) | 8010E234 00FF |
| Max Batting Power (Large) | 8010E236 00FF |
| Max Running Speed (Small) | 8010E2B4 00FF |
| Max Running Speed (Large) | 8010E2B6 00FF |
| Max Throwing Speed (Small) | 8010E334 00FF |
| Max Throwing Speed (Large) | 8010E336 00FF |
| Max Arm Accuracy (Small) | 8010E3B4 00FF |
| Max Arm Accuracy (Large) | 8010E3B6 00FF |
| Max Fielding Accuracty (Small) | 8010E434 00FF |
| Max Fielding Accuracty (Large) | 8010E436 00FF |
| Max Reaction Time (Small) | 8010E4B4 00FF |
| Max Reaction Time (Large) | 8010E4B6 00FF |
| Max Fastball (Small) | 8010E534 00FF |
| Max Fastball (Large) | 8010E536 00FF |
| Max Slider (Small) | 8010E5B4 00FF |
| Max Slider (Large) | 8010E5B6 00FF |
| Max Curve (Small) | 8010E634 00FF |
| Max Curve (Large) | 8010E636 00FF |
| Max Knuckleball (Small) | 8010E6B4 00FF |
| Max Knuckleball (Large) | 8010E6B6 00FF |
| Max Sinker (Small) | 8010E734 00FF |
| Max Sinker (Large) | 8010E736 00FF |
| Max Change-Up (Small) | 8010E7B4 00FF |
| Max Change-Up (Large) | 8010E7B6 00FF |
| Max Split Finger (Small) | 8010E834 00FF |
| Max Split Finger (Large) | 8010E836 00FF |
| Max Screwball (Small) | 8010E8B4 00FF |
| Max Screwball (Large) | 8010E8B6 00FF |
