Cheat Mode
Enter the following code at the main menu: [Right], [Left], [Up], [Down], [Down], [Right], [Right], [Up], [Up], [Left], [Down], [Left] - Unlock All Extra Forms.
Enter the following code at the Custom Players screen: [Up], [Up], [Down], [Down], [Left], [Right], [Left], [Right], [1], [2] - View MLB Players at Custom Player Menu.