User blog comment:694244/Pure Evil Removal: Boris the Animal/@comment-39281976-20190521000034/@comment-2059440-20190521002150

even if Serleena was a destroyer of worlds Boris takes it arguably even further when you take into account time travel etc.. there's also no real rule that multiple world-destroyers can't both count as PE (look at Marvel, DB etc as examples of that).

Boris was among the worst of the worst and even in first movie Edgar wanted to destroy the Earth, all MIB villains are technically world-killers, Boris just takes it to a new level.