New Homerun Angles
When the Batter is rounding 3rd after a homerun hit press various buttons to see new view angles
More Points
To get points for doing various 'feats' in the game. A easy one is to get 100 points for a perfect game. Do this by switching controls every time the CPU is up at bat and intentionally strike out.
Better hitting
As soon as the pitch is thrown hit Start and see the ball path to see if it is a ball or strike. Adjust your cursor accordingly.
Cheat Select
At the controller selection screen press 'L' to access the cheats you've acquired.
Perfect Game Points
To throw a perfect game (which is worth a hundred points), just swap controls with the computer every time its team is supposed to be up to bat and strike out.
Quickly Rejuvenate Pitchers
In Season, Franchise or Expansion mode, put the unhealthy or weakened pitcher on the15 day DL. Next, take the pitcher straight out of DL and back into your lineup and he'll be healed.