At the main menu, hold Triangle + Square + R1 to unlock the fantasy stadiums and teams.
At the vs. match-up screen, press Square, Triangle, and Circle to change the icons in the first, second, and third boxes respectively. The numbers in the following list indicate the number of times each button is pressed. After the icons have been changed, press the D-pad in the indicated direction to enable the code. For example, to enter 1-2-3 Left, press Square, Triangle(2), Circle(3), Left.
|Bone bat||0-0-1 Up|
|Blade bat||0-0-2 Up|
|Max speed||0-0-3 Left|
|Ice bat||0-0-3 Up|
|Whiffle bat||0-0-4 Right|
|Log bat||0-0-4 Up|
|Spike bat||0-0-5 Up|
|Max power||0-3-0 Left|
|Little League mode||1-0-1 Down|
|Dolphin team||1-0-2 Down|
|Dwarf team||1-0-3 Down|
|Minotaur team||1-1-0 Down|
|Scorpion team||1-1-2 Down|
|Gladiator team||1-1-3 Down|
|Extra time after plays||1-2-3 Left|
|Rodeo Clown team||1-3-2 Down|
|Bobblehead team||1-3-3 Down|
|Tiny head mode||2-0-0 Left|
|Big head mode||2-0-0 Right|
|Pinto team||2-1-0 Right|
|Evil Clown team||2-1-1 Down|
|Horse team||2-1-1 Right|
|Eagle team||2-1-2 Right|
|Lion team||2-2-0 Right|
|Olshan team||2-2-2 Down|
|Todd McFarlane team||2-2-2 Right|
|Rivera team||2-2-2 Up|
|Alien team||2-3-1 Down|
|Napalitano team||2-3-2 Down|
|Casey team||2-3-3 Down|
|16-inch softball mode||2-4-2 Down|
|Rubber ball mode||2-4-2 Up|
|Max batting||3-0-0 Left|
|Midway Park stadium||3-2-1 Down|
|Atlantis stadium||3-2-1 Left|
|Empire Park stadium||3-2-1 Right|
|Rocket Park stadium||3-2-1 Up|
|Monument stadium||3-3-3 Down|
|Forbidden City stadium||3-3-3 Left|
|Terry Fitzgerald team||3-3-3 Right|
|Coliseum stadium||3-3-3 Up|
|Infinite turbo||4-4-4 Down|
Hit ten homeruns in a game to unlock the Bobblehead team.
Get walked three times in one game. To do this easily, take two controllers and use controller two to just throw balls.
Hit a homerun at Comerica park with the Tigers to unlock the Lions team.
Hit a homerun with Sub Zero at Midway Park to unlock the Scorpion team.
Hit a homerun at Midway Park to unlock the Sub Zero team.
Hit a homerun at Right Field in SBC (San Francisco) to unlock the Atlantis stadium.
Hit a homerun at Fenway (Boston Red Sox) to unlock the Coliseum stadium.
Hit a homerun at Yankee Stadium (New York Yankees) to unlock the Empire stadium.
Hit a homerun at Pet Co (San Diego Padres) to unlock the Forbidden stadium.
Hit a homerun at Wrigley Field (Chicago Cubs) to unlock the Midway stadium.
Hit a homerun at Citzen's Bank (Philadelphia Phillies) to unlock the Monument stadium.
Hit a homerun at Minute Made Park (Houston Astros) to unlock the Rocket Park stadium.
The following is a list of Fantasy teams and the real teams that each corresponds to:
- Lions: Houston
- Horse: Philadelphia
- Pinto: Atlanta
- Eagles: St. Louis
- Gladiators: Boston
- Bobble Head: Toronto
- Dolphins: Florida
- Scorpion: Arizona
- Sub-Zero: Seattle
- Evil Clowns: NY Yankees
- Minotaur: San Francisco
- Alien: Minnesota
- Casey: Chicago Cubs
- Horse: Philadelphia
For some teams and stadiums to be unlocked, you must hit a homerun in a certain stadium. For the stadiums such as Midway and Rocket Park, you can start Franchise mode, then pick any team. Select the particular stadium that you need to hit a homerun in as your team's home stadium. Then, play any home game and hit a homerun.
Press Power Swing (Square + L3). This works well in the homerun derby.
To hit very far (about 800 feet), press Up + Turbo + Power Swing at the exact correct moment. It is basically luck, but it works.
Press Square then quickly press Up.
When you have a runner at first base and are about to pitch to the next hitter, throw the ball to first. He will not be out, but get the runner to hit you so that you drop the ball. He will start running to second. Pick up the ball and throw it to second base. You will get him out every time.