Instructions
Move to a position that gives you a clear path to the basket. If a player is between you and the basket, your player will more than likely attempt a layup or jump shot instead of performing a dunk. Good opportunities for dunking are typically during fast-break situations.
Hold the Turbo button as you sprint toward the basket. The Turbo button has to be held to perform a dunk.
Move the right analog stick in any direction as you approach the basket. The player will perform a dunk depending on how you moved the analog stick. To perform some of the game's harder dunks, you will often to need to perform half, or even full, turns with the analog stick. Experiment with different turning and pointing combinations to discover the game's numerous dunking animations.