Haha nice one dude! I didn't think 6 would be possible so I speedran getting 5 as for the "In case of a tie, we'll give the bonus prize to the video which was entered first."
GGs Man

Great job Gibson! As the first member to submit a jump with six backflips you're the overall winner of this contest. Accordingly and as promised, your Just account has been credited with a $20 bonus prize. Congratulations!