NBA STREET SHOWDOWN UNLOCKABLES
Bling bling golden jacket:
Win King of the Courts mode under the legendary difficulty setting.
Winning the 30 Pick-Up Games trophy:
When setting up a pick up game, have it so that you have one point until you win by going to the "My Rules" option just before the game. Go to "Spot Points" and set it so that you have all the points needed until you only have to get one point.