NBA 2K Playgrounds 2

Quickest way i found was to just play 3 point tournament on NBA difficulty, Set the number of rounds to 1 (same xp for 2 rounds so don't bother) and leave the time on 70 secs. You get 130xp per win and if you lose you get 70xp (you can semi idle and still level up, just need to press every 80 secs)

There are 2 ways of doing this; With 2 controllers or if you only have 1!

2 controllers method (easiest and fastest)
-Go to Exhibition
-Then select 2 CPUs and 2 local players

Press to bring up the game settings & put:
-Game Length - 15 points
-Lottery Picks - Multiplier Stars
-Difficulty Levels - NBA

I recommend using diamond players to make it easier for yourself. (I was using James Harden of the Houston Rockets & LeBron James of the Los Angeles Lakers)

Put your second controller on the opposite team as you & pick whoever you want for them (someone with low stealing and blocking).

When ingame, from the tipoff steal/score with your main controller.

KEY PART - When the second controller is inbounding the ball, press to inbound/pass & right after that press to shove on the second controller (player on the second controller's team should move out of the way).
If done correctly (not the end of the world if you didn't), the ball should be bouncing around the court and now score. Keep repeating that until the game is over or until you're level 50.

One level up doing this method will take :
- 10-12 games
- Each game will take 40-65 seconds depending on how consistent you do the inbound/shove.
- 8-12 minutes real time

One controller method
- Exhibition 3-point contest
- CPU
- Press to bring up game settings and put it on NBA difficulty
- Anyone that is good at making 3's at 100% such as gold James Harden or Steph Curry.

One level up doing this method will take:
- 12-18 games.
- Each game will take 80-90 seconds
- 20-22 minutes real time.