Extreme Snowboarding is a Dream Snowboard Dream Event in the Nintendo DS version of Mario & Sonic at the Olympic Winter Games. The objective of the event is to complete two laps of the course in the fastest time, with the event taking place in Twinkle Village. The starting course record for this event is 03:05.366.
In this event, the player starts by pressing , and can press and hold beforehand to charge up energy and perform a faster start. If the player begins charging from when "2" appears onscreen and releases it with perfect timing, thy will perform a starting dash, which will give them a short speed boost. Once the event has started, the player can press on downhill sections to crouch and pick up speed, and steer using . The player can also get a speed boost by slipstreaming an opponent for a long period of time. They can perform drifts by pressing and holding , which allows them to perform tighter turns. If they release when their trail is orange, they can perform a drift dash, which will give them a short boost of speed after completing the drift. When the character approaches a jump ramp, the player can press to perform a jump. Jump ramps come in two sizes, with the larger ones having orange edges and giving more air time, and the smaller ones being blue. The player can perform various tricks in the air using , which, if performed successfully, will give the player an additional speed boost upon landing, with the size of the boost depending on the number of tricks that the player managed to perform. Performing tricks also causes the trick gauge to fill, and when there is enough energy in it, the player can quickly press twice to perform a special dash, which will give them a large speed boost an will knock over any opponents directly in front of them. If the player does not successfully make a jump over a large hole, a Fishin' Lakitu will fish them out and drop them on the other side of the track. As well as holes, the track also features Chain Chomps and Egg Pawns as enemies, which cause the character to fall over when hit. The Chain Chomp lunges out at players, whereas the Egg Pawns will slowly walk along set paths. Item Boxes also appear on the course, which the player can pick up to gain an item. Items can be used by pressing , and certain one can also be thrown backwards by holding down and down on . The items that the player can collect are:
The player must complete two laps of the course, with a Fishin' Lakitu appearing with a sign to indicate the final lap, with the character that completes both laps in the fastest time winning the event.
Four players race side by side for first place. Do tricks in mid-air to enable a special dash that can win you the race!