70s kids' game

[Redhillmum]

There was a maze game ie, two plastic trays (one red, one blue) with a cable running from each to a tower with two lights on it. You had to guide a ball bearing around the maze (one side was a circular maze the other a square) to light up the tower, what was it called?

[DOUBRIS]

Was it Kerplunk?

[Redhillmum]

Sorry, no. Kerplunk was the game with marbles and plastic straws. Thanks anyway :)