Supercross 2000 cheats and cheat codes for Nintendo 64

Go to the "Select Event" menu, hit C-Up to display the cheat screen, 
then any of the following cheat codes:

All riders block you: Enter "BL0CKM3"
Big bikes: Enter "B1GB1K3S"
Big riders: Enter "G14NTS"
Big sprays: Enter "B1GSPR4Y"
Cancel Skipping Track reset: Enter "SK1PP1NG0K"
Disable crashes: Enter "N0CR4SH"
Extra hop button: Enter "H0P"
Headless rider: Enter "H34DL3SS"
More views: Enter "M0R3C4MS"
No Off Track reset: Enter "N00FFTR4CK"
No riders: Enter "N0R1D3RS"
Moon gravity: Enter "M00N"
Venus gravity: Enter "V3NVS"
Mars gravity: Enter "M4RS"
Mercury gravity: Enter "M3RCVRY"
Jupiter gravity: Enter "JVP1T3R"
Saturn gravity: Enter "S4TVRN"
Uranus gravity: Enter "VR4NVS"
Neptune gravity: Enter "N3PTVN3"
Pluto gravity: Enter "PLVT0"

Perform tricks:
Hold C-Down and press the D-pad in the indicated directions:

Move - Code:

Vert Fender Grab - Down, Up
Superman - Left, Down, Right
Super Fender Grab - Up, Left, Down
Side Heel Click - Right, Left
Saran Wrap - Up, Right, Down
Rear Fender Grab - Up, Down
Pancake Whip - Right
Nothing - Right, Up, Left
No Hander - Up
No Footer - Down
Nac Nac - Left
Heel Clicker - Down, Left, Up
Cordova - Left, Up, Right
Cliff Hanger - Right, Down, Left
Can Can - Down, Right, Up
Bar Hop - Up, Left, Right
Banzai - Left, Right

Moon stunt course
Win 1st place in the combined championship on the pro difficulty level.