Pro Yakyuu Family Stadium

Before using this cheat, it is highly recommended you understand how NES and video game programming work to some extent - this cheat allows you change any variable in the game's RAM ($0000 - $7FFF) and ROM ($8000 - $FFFF) in any manner you wish. Altering variables at random is very likely to just cause the game to crash unless you know what you are doing. Also note that this cheat requires the use of a Famicom controller that can press both Up and Down simultaneously (Player 1) and one that allows you press all four D-Pad buttons at the same time (Player 2).

At any time, press Up and Down on Player 1's controller, and all four D-Pad buttons on Player 2's controller. Some numbers will appear in the top-right corner of the screen. The top four at the RAM/ROM address - basically, the "what" you are altering, such as points; it identifies what something is in the game. These are in hexadecimal (base-16), which counts 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10, and so on. The two numbers below are the value assigned to that address - the "how many" of the "what", in other words. (This, too, is in hexadecimal.) Press B on Player 2's controller to enable RAM/ROM editing, use the D-Pad to change and alter the various numbers, then press B again to apply the edits.

This trick only works in 1P mode, against the computer. Use a left-handed batter and bunt. Try to get the ball to hit the right side of the bat (close to the batter). If you do this just right the ball will roll slowly past all the computer's outfielders (and infielders) and by the time they catch up to it, you'll be at home plate.

To have the computer assist you in games, When you start a new game go to ''watch game'' so it will be Computer Vs. Computer. Pick any teams you want, Once the game starts and the computer is playing it just move the control and the away team will be under your control.
If you stop moving the control then the computer will take back over.
This is good for fielding as the computer does all that work if you let it.

In 1p mode, first, select the National All-Stars. Then select to play American league all stars. after the game with the American league, you will play the glitch team. Beware, this game will be an ass kicking. If your NES or emulator last through the game, you can play a better glitch team. Watch out for the 150 mile an hour pitches

At the title screen, hold A+B and press Start to view the names of the game's programmers.

Pick 1 Player Mode, select the "N Team" and enter as the password "1198". Beat all the teams and at the ending, when the player is getting thrown up and down in the air, hold Start to go to the title screen. Once on the title screen, wait 5 seconds and the credits will appear.