How do you get in the dunk contest or 3 point shoot out in nba 2k 13?

In NBA 2K13, to participate in the Dunk Contest or the Three-Point Shootout, you need to go to the All-Star Weekend in My Career mode. As your player progresses and gains popularity, they will receive invitations to these events. You can also manually select the events from the main menu under the "All-Star Weekend" option. Make sure your player meets the required attributes, especially for the Dunk Contest and Three-Point Shootout.