Back to the Future but It's Only Marty Walking Backwards

Made by request. I did not include every instance of Marty taking one step backwards or I would have lost my mind. Generally, two steps or more. At the end, I included other instances of Marty going backwards somehow. He spends almost as much time going backwards as he does asking questions.
“Back to the Future” trilogy © Robert Zemeckis and Bob Gale, 1885-2015.
Video made for entertainment purposes only under Fair Use.