If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
This is one of the best snowboarding simulations. In this game you are snowboarding downhill and can turn left and right. There are gates you need to pass through. If you miss gates you get penalty time. When you are turning, you lose speed, so your trajectories are not linear. Try not to hit any gate flags or you will fall and lose time. Hit the kickers and land tricks to knock seconds off your time!
Arrow Keys - Move / Tricks.
Spacebar -Crouch / Jump.