Vizziepop stated God will NEVER appear in the Helluva universe. She states because it's too abstract a concept for her to turn into a character, so the Speaker will be the highest authority in Heaven.
In life, Pentious had long hair and always wore a work apron that hid his legs. He also walked like he was sliding on the floor. All of which foreshadowed his snake form in the afterlife.
During the song "Like You" when Peter (Darren Criss) is singing about Christmas RomComs playing at the Cineplex, there is a brief glimpse of a poster for the movie "Santa Goes To High School". This could be a reference to the play Black Friday (2020) by Team Starkid which has the fictional movie Santa Claus is Goin' to High School at the beginning of the second act.
Darren Criss was one of the original founding members of Team Starkid. He played Harry Potter in A Very Potter Musical (2009), and both it's sequels, and also wrote the music for multiple productions.
During the song "Gravity," Lute hurls a dagger-like shard of a vinyl record across the room, and it embeds itself in the opposite wall. Her vision of Adam then rises before her, the shard appearing to pierce straight through him. When he comes to a stop, the shard is still visible jutting from his chest exactly where Niffty had stabbed him before.
During the song "Gravity," several Latin phrases can be heard chanted in the background: Sanctus (meaning "holy" or "sacred"), Dominus (meaning "lord" or "master"), Ignis (meaning "fire"), Vindictus (meaning "revenge" or "vengeful"), Sanctus Dominus (meaning "holy lord"), and Gravitas (meaning "graveness" or "solemnity").
