Triple Play 2000 cheats and cheat codes for Nintendo 64

During gameplay press the following button combinations:

3 ball count: Hold L + R + Z and hit Up, Down.
3 outs: Hold L + R + Z and hit Down, Up.
Add one run to home team: Hold L + R + Z and hit C-Left twice.
Add one run to opponent team: Hold L + R + Z and hit C-Right twice.

Strike out:
To strike out the batter, hold L + R + Z and hit Right, Up,
Right, Up while you are on the pitching mound.

Get a homerun:
To hit a home run, hold L + R + Z and hit Left, Up, Left, Up 
while you are in the batter's box.

Easy homeruns
Hold Analog-joystick Up/Left and hit B, while you are in 
the batter's box.

Homerun sounds
After scoring a homerun and running around the bases press the 
following buttons to hear different sounds:
Horn - press C-Up
Louder horn - press C-Right 
Whistle - press C-Down