"The war to end all wars."
Justice League Dark: Apokolips War - Easter Eggs & Hidden Details
Easter Eggs
The Flashpoint Connection
The entire plot is bookended by the concept of 'Flashpoint'. The film's ending directly mirrors the event that started the DCAMU, Justice League: The Flashpoint Paradox, by having The Flash reset the timeline once again. Constantine explicitly blames the first Flashpoint for creating the reality where Darkseid could win.
Harley Quinn's "Yatzee!"
During a fight, Harley Quinn exclaims "Yatzee!", a callback to a line she had in the earlier DCAMU film, *Suicide Squad: Hell to Pay*. This creates a fun, if slightly confusing, moment of continuity.
The Lazarus Pit's Side Effects
Damian reveals he used a Lazarus Pit to resurrect Nightwing, who was subsequently driven insane. This is a direct reference to the consequences of using the pit, as established in previous films in the DCAMU like *Son of Batman* and *Batman: Bad Blood*.
Demonic Superman's Return
When Trigon possesses Superman, his demonic appearance, particularly the four glowing eyes, is a visual callback to when Trigon possessed Superman in the earlier DCAMU film *Justice League vs. Teen Titans*.
Cyborg's Final "Booyah!"
In a dark twist on his classic catchphrase, Cyborg's last words before sacrificing himself and all of Apokolips are "Suck it, bitches," instead of his usual "Booyah!". This highlights the grim and hopeless tone of the film's climax.