Puzzle game. Top down view The main action took place on one of more circles which has 4 slots in. A ball would come down a rod and would land in a slot - you can rotate the circle to decide which. You then rotate the circle to flick that ball out along another rod to fill another circle with slots. So you are dealing with the balls that come down the first rod, flicking them to the second, moving them out from there to another and I think if you had 4 the same colour they disappeared? Game over when you ran out of slots. There were two or three variants of the game and I have completely forgotten the name.