A powerful dunk is executed by holding down the R2 trigger or RT trigger and then flicking the right stick in any direction while running. Dunks that are violent can be performed by NBA 2K22 MT any player that has the elite dunking gear, such as Ja Morant Vince Carter, and Zion Williamson.
It's fine if the defenders are close to the ball when you have elite dunkers as they possess the essential attributes needed to make a spectacular finish over them. If you have your player sprint from the backcourt and have strong stamina will increase your chances of completing the move.
A contact dunk is made by holding R2 or RT while keeping the stick in the direction of the right as you sprint toward the basket. There must be a guard who is guarding the paint to ensure that your player can finish the contact dunk on top of him.
Elite finishers have a greater chance of finishing contact dunks better than defensive players. The players who have the elite or pro packages will get contact dunks but the difficulty of finishing increases when compared to Buy NBA 2K MT Coins players who have blockers and paint defenses that are high.