He must score from all points near the basket in 3-second area for gooder score you can play in "Points".
In the beginning of the game you shoot the ball into the basket from the first point. When you score you shoot the ball from the second point, and then from the third point, e.t.c.
For a good rebound you can play in "Rebs".
You are staing in three-second area, you friends are trying to score the ball and you must rebound the ball and pass it back.
For training a dribbling you can dribble the ball around the court(dribble by right hand, by left hand, by right and left hands one by one, throw your legs).
Jumps and hops with a weight(10-70% of your body's weight).
Jumps and hops with trying to touch the thing, that are very high.
Swimming is very good for the center.