When Nate auditions for a role on "Bud Stuy," he asks, "Is this for the CW?" a meta-reference to the network DC's Legends of Tomorrow airs on.
When Zari Tomaz leaves the Air Totem and reunites with the Legends, she notes the engagement of "Avalance," which is a nod to the common fan trope of "shipping" Sara and Ava.
Gus-Gus resembles and was likely inspired by Beebo.
It is revealed that female Necrians lay eggs in their mating partner's head via their ear canal during intercourse and that Kayla has done so to Mick, making him the host of her eggs.
One of the movie posters is of "Lorem Ipsum," the infamous filler text.