N64
All Tracks, Boards, and Characters Code
To start with all the extra mountains, boards, and the hidden character, input the following code at the "start" screen (where you can select start, lesson, or option): Analog Stick Down, Analog Stick Up, D-pad Down, D-pad Up, C-Down, C-Up, L, R, Z, D-pad Left, C-right, Analog Stick Up, B, D-pad Right, C-Left, and last press Start. If done correctly you'll hear a kid saying "Yeah!"
N64
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.
N64
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.
N64
Secret Character
Want to know who Atlus' secret character in Snowboard Kids is? Earn a gold cup on Ninja Land, and you will be able to control the track's very own ninja complete with board.
N64
Blue Star Trick
To perform a trick with blue stars instead of golden stars, do this trick off a jump. Hold A, tap the control left first then right and release A at the jump. This will make your character do a 720 grab.
Submitted By El Steveo
N64
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.