BACKBREAKER

Credit goes to StrictlyScience

I tried to get the achievement the way it seemed to work for other players. However, I couldn't get it, even with trying it for a few 60-minute-games. With this method it unlocked on my first attept within the first minute of actually playing.

You wanna give yourself as much room as possible to run! So when you receive a punt or a kick, run backwards to one side of the field while everybody chases you. When your opponents get close, start running to the other side of the field (parallelly to your own endzone). Once you reached the other corner of your field start sprinting towards your opponents endzone. When you're at about the 30 yard line start to showboat (press and hold A on standard controls, Y on alternative controls when not in aggressive mode)

Additionally, I set the difficulty to easy, mode to arcade and created a custom team, which was based on strength, a balanced defense and a rushing offense. Select 11 gold offense and defense players and you should be fine.

Also, play against the Nashville Guardians as they got quite a lot slow players and with your golden punt/kick returner it shouldn't be that hard to complete the run!

I did mine on a punt return with the all star team (the one you unlock when beating road to backbreaker). It should be noted to HOLD A once you get to around the 30 yard line when going in to score. Also let go of RT before you hold A as you can't showboat when holding RT.

All i did was play an exhibition game between the Spartans and the Guardians. As the Spartans when you get the ball run backward till your at the 20, throw a hail mary the next play to a reciever past everyone, showboat and hope you dont get hit(you shouldnt get hit since the Spartans have some of the fastest players and the Guardians have some of the slowest)