This ‘Seventies entry ticks nearly all the boxes required of a board game. First off, even before the box was opened, you had the double-meaning implicit in the name (successfully exploited by the burglar-centric telly ads) insofar as not only did the red and yellow counters of the opposing sides “fall down” through the vertical playing construct, but also whilst you were trying to win you could have been assisting your competitor in their attempt to plot your “downfall”.