The basic idea behind the mountain sky game was first inspired by the ski jumping sport during the Tokyo 2022 Winter Olympics. In addition, mountain sky is very similar to ski jumping. Only by bouncing a soccer ball on his head and keeping a keepie uppie while skiing and trying to achieve hexagonal goals high above the snow cover surface are there differences between the two types of sports. In this sport, two ski jumping hills face each other. The skiers of one team are placed on one ski jump hill, (a specially designed curved ramp), and the skiers of the opposite team are placed on the opposite ski jump hill. Skiers start skiing simultaneously on the slope of the ski jump hill, which is called the in-run. The playing goals are located exactly between the two ski jump hills, high above the flat, snow-covered surface. Game goals are held at a height above the snow-covered surface by means of a pole. In this research, first, the history and brief introduction of ski jumping are discussed, and then the issues related to the independent sport of mountain sky are discussed.