Game made in Open GL

This a runner like game which has a ball as a player moving in a single direction and hexagonal like tunnels will be formed around the player, the thing is he has to rotate the hexagonal tunnel to form a way for the sphere(player).

In this game the player is a sphere who is running through a tunnel, without falling in a hallow like tunnel. The tunnel just rotates in a direction depending upon the player inputs. The player cannot control the speed of the tunnel or the speed of the sphere, he can just only control the direction of rotation and manage to escape from the hallow tunnel.