To unlock Everything type in Nba Ballers True Playa to get all of it the cheat was tested by me.

OK at the enter special codes screen press y b x to enter the codes. The numbers in the following list indicate the number of times the button should be pressed. After entering the codes move the d-pad in any direction to activate the code you just put in.

for example: 1-3-2 would be y,bbb,xx. ok here are th codes

tournament mode: 0-1-1
big head: 1-3-4
see shot percentage: 0-1-2
use alternate gear: 1-2-3

More Codes:
At the phrase-ology screen found in inside stuff enter one of the following and press y to activate

KILLER CROSSOVER Iversons Alternate Gear
THE ANSWER Iversons Recording Studio
ZO Alonzo Mourning's Alternate Gear
RISING SUN Amare Stoudamire's Alernate Gear
BALL HAWK Antoine Walkers Alternate Gear
STYLIN' & PROFILIN' Baron Davis' Alternate Gear
RADIO CONTROLLED CARS Ben Wallace's Alternate Gear
CELTICS DYNASTY Ben Russell's Alternate Gear
TOWERS OF POWER Bill Walton's Alternate Gear
24 SECONDS Chris Webber's Alternate Gear
CLYDE THE GLIDE Clyde Drexler's Alternate Gear
RIM WRECKER Darryl Dawkin's Alternate Gear
NBA HANGTIME Dejaun Wanger's Alternate Gear
IN THE PAINT