... We have acquired one without instructions. Admittedly I haven't spent hours playing with it yet, but my quick question is... what do you do to change the function of the buttons? IE sometimes they make noises, say colours etc.It seems very random to me, sometimes they change, sometimes not. Also, its only got one ball with it, does this matter(other than not being so much fun)? And, why have I not worked out a child's toy myself??