Charge the mound
Hold A when your batter is getting beaned. If done correctly, the hitter will charge the mound.
Hold B when a play is over. The next batter will look like he is playing banjo with his bat when he approaches the batters box. Note: Enable the approaching plate option to see this.
Change game settings
Note: This procedure involves editing a game file, so create a backup copy of the file before proceeding. Use a text editor to edit the "tune.txt" file in the game's folder.
Custom seasons in homerun derbies and batting practice
Create backup copies of all the files in the "/Stats/Rom" folder, in the folder you installed the game in. Now copy the files from your season's folder that is located in the "/Stats/Saves" folder over the ones in the "Rom/Season2000" folder. You must do these things AFTER getting into the game, or it will will crash when you get into it. If you used the player editor to make your player's HR # be in the hundreds or even thousands, get ready to see some long homeruns.