NASCAR 1999 cheats and cheat codes for Nintendo 64

Cheat codes - Unlock racers:
Set the controller configuration to 3. Then choose the indicated tracks, 
highlight the "Select Car" options, then enter the indicated button 
combinations less tahn 4 seconds. If the code is accepted, you should 
hear a sound.

Unlock Cale Yarborough
Choose the Darlington track, highlight the "Select Car" selection, and hit 
L, R, L, L, L, R, R, Z less than 4 seconds.

Unlock Richard Petty
Choose the Martinsville track, highlight the "Select Car" selection, and hit 
C-Up, C-Up, C-Down, C-Down, C-Left, C-Right, C-Left, C-Right, L, R less than 4
seconds.

Unlock Benny Parsons
Choose the Richmond track, highlight the "Select Car" selection, and hit 
C-Up, C-Right, C-Down, C-Left, Z, Z, Z, L, Z, Z less than 4 seconds.

Unlock Bobby Allison
Choose the Charlotte track, highlight the "Select Car" selection, and hit 
C-Up, C-Left, C-Down, C-Right, L, R, L, R, Z, Z less than 4 seconds. 

Unlock Alan Kulwicki
Choose the Bristol track, highlight the "Select Car" selection, and hit 
Z(8 times), R, R less than 4 seconds. 

Unlock Davey Allison
Choose the Talladega track, highlight the "Select Car" selection, and hit 
C-Up, C-Left, C-Down, C-Right, L, R, L, R, L, R less than 4 seconds. 

View replay in slow-mo:
Pause the game play and choose "Instant Replay". Hit Up-Left or 
Up-Right on the Analog-stick