Press Down, Right, Circle, Square, Left, Triangle, Up, L1 at the main menu. The controller will vibrate to confirm correct code entry. It will not show up on your profile, but it does work in Exhibition mode.
All Golden and Silver era players
Press L1, L2, Square(2), Triangle, Circle, Down at the main menu. The controller will vibrate to confirm correct code entry. It will not show up on your profile, but it does work in Exhibition mode.
Easy saves
Put your in closer at the beginning of the seventh inning and pitch him the rest of the game.
Easy training points
In Road To The Show mode when you are a pitcher, a good way to get extra training points is to catch every possible pop up you can reach on the infield. One putout is worth 5 points, two put outs are worth 10 points, three put outs are worth 15 points, and it goes up. Make sure you can easily reach the pop up. If you arrive at the same time the ball is about to reach the infielder who is calling for the pop up, it may fall in.