Instructions
Load "NBA Jam" to the main menu on your PlayStation 3.
Press "X" on "Play Now" and enter your initials.
Pick any team with a player that has a very high dunk rating. When a player has a rating in green font, it indicates that they are very good at the ability. Examples of players with a very high dunk rating are Love on the Minnesota Timberwolves and Garnett on the Boston Celtics.
Begin the game as normal after picking your opponent's team.
Hold down the "L1" or the "L2" buttons when you have control of the ball. This enables turbo, which lets you run faster than normal and makes it easier for you to dunk without error.
Hold down and then release the "Square" button to dunk the ball. Release the turbo button for a moment to let your stamina return; you will need it for your defense as well.
Re-enable turbo and run toward the opposing player who has the ball. Press "O" to shove him and steal the ball back. Perform another slam dunk.
Repeat Step 7 a second time. Becoming "on fire" means your player specifically must make three shots in a row without anybody else scoring in between.
Repeat Step 7 a third time. This time, dunking while on fire causes the backboard to break into pieces.