3 ms·

According to the Ghostbusters, the Tunguska event was the biggest 'interdimensional cross-rip' of the 20th century, prior to the whole Zuul incursion.

• davesque 10y ago
  This is my preferred explanation.
• thesagan 10y ago
  I really wonder which form the Destructor took in that scenario. The impact object itself?
• teddyh 10y ago
  You mean the Gozer incursion. “Zuul was a minion of Gozer.”