1080 Snowboading
Dragon Cave
To get this course beat the game on Hard.
Deadly fall
To get this course beat the game on expert.
Panda boarder
To get him you need to beat all the attack modes then pick Rob, Hold left C and hit A.
Penguin Board
Complete all 24 tricks on training mode, pick the Tahoe 151 board and hold down C and hit A.
The Ice man
First, Beat the Ice man on Deadly fall, now pick Akari and hold Left C and press A.
Gold Ice man
First, Pick the blue ice man and beat expert mode again then pick Kensuke, Hold top C and press A.