This is Sir Isaac, a 5’10" street baller who recently won the H-Town BlackTop Dunk Contest in Houston. It’s his third win in as many years. Not hard to see why. The video up top, in particular, shows the baller (real name Isaac White, with supposedly a 55-inch vertical), doing the “East Bay Funk” off the Phoenix Sun gorilla mascot.
It’s worth noting that John Wall won the past NBA dunk contest with a version that’s less complicated than this one.
Here's video of the full arsenal.