When Junior asks Chucky why he didn't simply kill Andy, the red-headed fiend remarks that he'd had a gun. "I hate guns," he elaborates. "They are like my Achilles Heel along with axes, fire, and industrial-sized fans." As longtime Child's Play viewers will recognize, each was a reference that correlated to an actual defeat -- with the ax used in Seed of Chucky and the giant fan being a part of Child's Play 3.
First time in the series that Glenda was mentioned by name since their appearance in Seed of Chucky.
Tiffany offers a second long-awaited name drop. As she shows Junior a bomb she plans to use against Andy Barclay, she states that it had been given to her by "my darling Glenda." Chucky and Tiffany's genderfluid offspring hasn't been seen or mentioned by name since 2004's Seed of Chucky.
After decapitating doll Chucky to protect Nica, Tiffany taunts him with the revelation that she'd betrayed him to the police in 1988. A flashback then showed Young Tiff (Blaise Crocker) directly name-dropping Mike Norris. He was the detective played by Chris Sarandon that originally killed Charles Lee Ray (brilliantly played by Fiona Dourif on Chucky). Mike Norris was also one of Child's Play's surviving heroes and one that viewers want to return.
After possessing the previously harmless Billy doll, Chucky cheerfully stalks Jake and Lexy. As he cuts his way through a curtain, he musically says, "Here's Chucky!" The moment was obviously a nod to The Shining -- allowing the killer doll to say the line he couldn't think of after breaking through a door in Seed of Chucky (2004).