NBA Baller Beats doesn't just make you dribble in boring 4/4 time and call it a day. Depending on the difficulty, you'll be passing the ball forward and backward between your legs, behind your back and in front of you; you'll be fake-passing from side to side, flow dribbling and jumping up in the air with the ball above your head.
The scoring system works such that the special moves tie combos together, and on harder difficulties you'll be confronted with strings of moves that will send the ball flying every which way. If you're terrible (like me), these will prove quite an obstacle. But practice makes perfect, and after a few hours I began to see a massive improvement in my own game.