played in East Germany
prior to (and possibly) after the collapse
of the Berlin wall
. The game involves simply trying to spot as many red colored Trabis as possible.
A trabi is a cheap East German car which is made using recycled materials. They spew out pollution.
I visited Berlin in 1990. I was only seven or eight years old, but I distinctly remember leaning out of the window of the falling apart apartment building we were staying in with a friend and trying to count red Trabis. (eins, zwei, drei...)