NBA 2K Playgrounds 2

Two controller method. You should get 1 legendary player for free when you open the free packs upon starting the game. Now to get this out of the way sTart a exhibition match with second controller on other team, this will allow you to play entire match on your side of the court. Now keep stealing the ball and scoring with your legendary player, after each game you will gain exp and see the meter go up, you start at bronze level. This can be earned easily by natural play but if you just want to get it out the way this helps and can be COMBINED with the ALLEY OOP achievements.

The two controller method works well, but another way is to simply play through the season mode with a Legendary player and mainly play with that player. I did this during my play through with Shaquille O'Neal on the Magic and was able to pop "Coast to Coast" and this achievement at the same time.