Warning: Spoilers! During episodes of Arrow, The Flash, Supergirl, Legends of Tomorrow and Batwoman, each of the CW/DC shows pitted its heroes against the Anti-Monitor--an evil being trying to destroy the multiverse. And because this massive event contained every hero--and some villains--from CW's Arrowverse, of course there will be some Easter eggs and references to other DC properties from movies to forgotten TV shows to comic books.
In our video of the best Easter eggs from Crisis on Infinite Earths, there are references to Batman 66, Batman 89, Superman II, Batman: The Animated Series, Lucifer, Smallville, Constantine, the Justice League movie, Green Lantern, Super Friends, Kingdom Come, Birds of Prey, and more. You can also check out the full list of 63 Crisis on Infinite Earths Easter Eggs here, and read about how the Crisis on Infinite Earths finale completely changes DC’s Arrowverse for the better.