We could make this much larger but trying to run in deep snow is difficult at best. One team starts the game by throwing the Vortex football along the snow towards the other teams goal line. The receiving team tries to stop the ball as quickly as possible and throw the ball back quickly. The ball is thrown from where it is stopped, not first touched by the other team. The object is to keep moving your opponent back towards their own goal line so you can score by having the ball cross the goal line.
Teams alternate throwing the ball.
The thrower tries to throw the ball where his opponents can't get to it quickly to stop it, but must keep it in bounds. Don't try to stop the ball with your hands. The bouncing Vortex ball can come up suddenly and hit your face. In cold weather this will smart somewhat. Feet and legs work best.