All courses, all snowboards, the secret racer Sinobin, and play
as the same character in the multiplayer mode:
At the title screen, press Down on the control stick, Up on the control stick,
Down on D-pad, Up on D-pad, C-Down, C-Up, L, R, Z, Left on D-pad, C-Right,
Up on the control stick, B, Right on D-pad, C-Left, and then Start. You should then hear a “Yeah!”, showing that the code worked.
Get 2700 points in the trick skill game
Hidden Silver Mountain Track:
First you must earn gold cups on tracks 1 to 7 to open up Quicksand
Valley. Now go for the gold on Quicksand Valley, and Silver Mountain
will open up.
Hidden Quicksand Valley Track:
Collect all Gold Cups on tracks 1 to 6, and you will be rewarded with
the desert track, Quicksand Valley, and an additional snowboard.
Hidden Ninja Land Track:
First you must earn gold cups on tracks 1 to 8. After you opened up
Silver Mountain, come in first to get a gold cup and you will be treated
to an ending sequence with all the characters. Track 9, Ninja Land, will
now be open.
Infinite cash 801222eac350 1 lap race d01222880000 801222880009 Enable Sinobin 8110ae5e0100 Gold Medals 810eca220101 810eca240101 810eca260101 810eca280101 810eca2a0101 810ecaac0101
Thanks to Revolution readers Viperboy, Lance Tribble, David Balfour, Jesse Morales, Betty Ellingsen, and Cruisin911!