Here is the full list of all 24 Horatio Goes Snowboarding (EU) trophies - there are 5 bronze, 11 silver, 7 gold and 1 platinum.
Unlock Endless Mode
Achieve three perfect runs in a game.
Start 50 board runs.
Achieve 2000 points in one run through Grandstanding bonuses.
Get hit by the Yeti.
Get run over by 10 cars.
Get from the hospital to the helicopter without stopping.
Land on trash after hitting a car.
Hit 10 cones in one run.
Score 25k or more.
Reach day 5.
Achieve 1000 points in one run through Grandstanding bonuses.
Fall off your board by colliding with a goal flag post.
Wipe out three skiers in one run.
Finish 3 board runs without hitting anything.
Achieve two perfect runs in a game.
Achieve 500 points in one run through Grandstanding bonuses.
Finish a board run and go through the goal.
Achieve a perfect run.
Reach the helicopter with no snowboard.
Unlock all other trophies.
Have £420 or more.
Get hit by 2 police cars.
Collide with 3 snowmen.