I started playing MyPlayer mode on 2K13 and for fans of the mode, I think you'll be in for a treat in this year's offering. They immerse you more into the ins and outs of being a rookie. You start by creating your player. I think the players looked better last year, but that's just me. In my play through, I created a PG and I was drafted 4th by the Charlotte Bobcats.
They've added the idea of having a rival. His name is Ellis. I think this is a great addition as it adds more story to the mode. I haven't faced off with him yet, but I'm sure we'll be meeting down the road.
Aside from that, they've added more cut scenes to shape the player that you are. When you have a bad game, the star player approaches you and asks you if you want to practice with him. They added practice sessions as well which was a nice touch.
Social media challenges is one of the additions I like as well. There was one game where Kris Humphries tweeted that I won't be able to get 2 steals. Well, I got 5 that game and I got extra VC's for beating his challenge. He later tweeted back that I beat him.
If you love playing this mode, you better get this game.