Here is the full list of all 26 Ski-Doo Snowmobile Challenge trophies - there are 12 bronze, 6 silver, 7 gold and 1 platinum.
Collect all other trophies.
Unlock all unlockables in career mode.
Achieve 20,000 stunt points in a single online match.
Take down four opponents in a row without crashing.
Unlock half of all unlockables in career mode.
Take down three opponents in a row without crashing.
Perform a double backflip.
Stay in adrenaline mode for 60 seconds.
Stay in adrenaline mode for 30 seconds.
Perform a double frontflip.
Stay airborne for 5 seconds.
Invite someone to a race.
Collect $50000 in career mode without spending them.
Lead a race from start to finish.
Collide with 3 trees in a race.
Perform a three stunt combo.
Perform a two stunt combo.
Perform a backflip.
Perform a frontflip.
Hold a stunt for 4 seconds.
Win a career race with your sled intact.
Collide with the spectators.
Hold a stunt for 2 seconds.
Take down one opponent.
Stay airborne for 3 seconds.
Land on top of another player in an offline match.