The game known as
shredsauce, uses a pre-made physics package made on the Unity Asset Store®. It implements gravity and basic physics. Every "jump" and amount of "Air" are from the velocity and how the jump is formed. If a jump is hit the same way it will be perfect every single time, which can be good and bad, a more realistic setup for the game would be better for this particular competition, since only a certain number of backflips can be completed on a jump (there is a set speed at which the jump will not work, around 35km).
The Unity Asset Store® is great for game developers that are trying to save a little bit of time, and of course the Unity Asset Store® is used for the program Unity 3D®. Unity 3D® is a game engine that can use different languages, which are: boo script, Java script, and C# (C Sharp). So the great thing about the Unity Asset Store® is that it saves game dev's time, at the Unity Asset Store® you can find a variety of pre-made things from characters to cloud packages.