Move a object from one area(point) to another(point) area through the maze

I have a kind of soccer field with the bolls which are born periodically at one gate(start gate) and moving toward second gate (finish gate) . Also there are a player boll which is trying to collect these running bolls , like in in Roll and Boll game. Also there are some obstacles walls (a kind of maze) in the field area. If the player boll did catch the running balls their just disappear in the finish gate. So the question is how to direct these balls from one gate to other. Also running balls start to move from start gate in different direction and not straight forward to finish gate. Finish gate - reminds a kind of magnet which attract running balls, so running balls must looking for the way through the maze to finish gate.