Cheat Strikeout :-  X, Down, Circle, Square, Right, Left, Triangle, Up. This forces the next pitch to be a strike out.
Cheat Homerun :-  Up, Triangle, Left, Right, Square, Circle, Down, X.Force next hit to be a home run.
Cheat Crowdcomment :-  Square, Circle, Square. Announcers talk about the stadium and crowd.
Cheat Weathercomment :-  Circle, X, Circle. Announcers talk about the weather.
Cheat Sponsorcomment :-  Triangle, Circle, Triangle. Announcers give some funny commercials.
Cheat Crowdcheer :-  Down, X, Down, X, Triangle. The Crowd cheers.
Cheat Crowdboo :-  Down, X, Down, X, X. The crowd boos.

Strike Out Trick:-
If you'd like to win this game by really cheap means, then this trick is for you! Start your game, and when the computer opponent is batting, press Start to pause the game and at the Pause Menu, high-light "Select Controllers" and move your controller to the other team. Now take control of the batter and move him all the way down and way to the side of the box. Now you can either wait for the computer to pitch and just don't swing, or you can take control of your original team and throw some low strikes, which the computer will have a hard time hitting. Either way, you should be able to easily strike out your opponent with ease. Keep doing this throughout the game, and you'll be sure to win. Just make sure you switch back to your original team before the game ends.