All the streets are covered with ice, and the pitch you have to sit at home, but you do not become discouraged, took out a bike with spiked wheels and go ride on the icy surroundings. The road is so extreme, that the treads of your bike even with spikes on the slide all the way. Move carefully, without gaining a crazy speed to overcome the obstacles, otherwise your sure to turn in the air, making unplanned trick and break with a steel horse has not fulfilled its purpose.