american football challenge an amazing football game your role is to prevent the opposing team from scoring moving the ball over the defended goal line within the frame of the goal .
for who don't know the american football game it is referred to as football in the united states and canada and also known as gridiron is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. the offense which is the team controlling the oval shaped football attempts to advance down the field by running with or passing the ball while the defense which is the team without control of the ball aims to stop the offense's advance and aims to take control of the ball for themselves. the offense must advance at least ten yards in four downs or plays and otherwise they turn over the football to the defense.