Guillermo del Toro opening sequence/References

Cultural references

 * The first part with the zombies is a reference to .
 * There is a Mecha and a Kaiju battling it out in a reference to the 2013 del Toro's film, .
 * The Dead Raven landing on the Tire Fire is a reference to .
 * Lard Lad becoming alive is a reference to "Treehouse of Horror VI".
 * Chief Wiggum looks similar to the Cyclops from the .
 * Alfred Hitchcock tosses bird seed on Mrs. Krabappel and birds attack her, referencing the movie, .
 * The blackboard gag's text is a reference to .
 * The man standing next to him is Stephen King, author of The Shining.
 * Groundskeeper Willie's appearance is a reference to Hellboy and the character he buries under the leaves is from the film.
 * Homer's mutated appearance is a reference to the reapers from . Carl's appearance is a reference to Blade as well.
 * Lenny's mug saying "I Hate Mondays" is a reference to .
 * Matt Groening's original designs for the Simpson family from "The Tracey Ullman Show" are buried underground, as well as the skeleton of.
 * Mr. Burns is re-imagined as the Pale Man from Guillermo del Toro's "", who ends up eating the unfortunate pixie Smithers.
 * The family also later recreates the final scene of the film during the couch gag.
 * Maggie rides on the grocery checkout belt with scarabs from del Toro's first film, "".
 * The cash register reads 666, the number of the beast.
 * del Toro's second film, "", is referenced, with Marge as the giant cockroach.
 * The music class is substituted by the phantoms of ', Dewey Largo, instead, is dressed as '.
 * Pictures of the music class refer to (from left to right): Starships Poopers from "Treehouse of Horror IX", The Island of Dr. Hibbert from "Treehouse of Horror XIII", The Raven from "Treehouse of Horror" and Milhouse and the Great Pumpkin from "Treehouse of Horror XIX".
 * The monster which picks Bart with its tentacles is Cthulhu from .
 * The characters standing on the sidewalk are:
 * Author is having coffee with the giant winged and tentacled monster Cthulhu, a reference to perhaps his most famous creation.
 * , who holds up his arm for the three-eyed raven to alight, a reference to Poe's poem "".
 * adding tattoos to a tattooed man, a reference to his book .
 * Fantasy and science fiction author standing next to a hooded, cloaked figure wearing dark glasses, a zombie from the 1971 movie ', based on Matheson's novel '.
 * The who chase after a crowd of Springfield citizens, referencing the mob that chases after the monster:
 * Count Dracula.
 * Frankenstein's Monster.
 * The.
 * The Mummy.
 * The.
 * The Invisible Man.
 * The Mutant from Metaluna from .
 * Maggie terrorizes Milhouse behind the wheel of the evil 1971 Lincoln Continental Mark III from .
 * Among the creatures and characters in the field next to the Simpsons' house are:
 * A creature from , also from del Toro.
 * , author and host of the TV series , smoking a cigarette.
 * The robot from the TV series .
 * The alien from the 1979 movie, Alien.
 * "The Man in the Beaver Hat" from the 1927 lost film .
 * A mole from , writing "El Muerto" on the wall, a reference to El Barto.
 * Coming out of the ground, a Morlock from the 1960 movie .
 * A line drawing in profile of Alfred Hitchcock as in the beginning of TV series , being drawn by Hans Moleman.
 * The robot monster from the 1953 movie .
 * Three of 's sword-wielding skeletons from the 1963 movie .
 * Ray Harryhausen's Ymir from the 1957 movie .
 * The object that collides into Kang and Kodos Spaceship is a reference to .
 * Two aliens from the 1957 movie .
 *  from the movie with the same name.
 * The vampire from the 1921 movie .
 * The flying saucer and robot Gort from the 1951 movie , with Gort shooting out a laser beam from his visor.
 * Brundlefly from the film The Fly.
 * The pinhead from 's 1932 movie ', which could also reference Pepper from '.
 * The Mummy and the Invisible Man again.
 * from .
 * Death.
 * Homer is Santi from del Toro's ""
 * Lisa falls down the rabbit hole à la .
 * Hypnotoad from Futurama makes an appearance.
 * Hypnotoad from Futurama makes an appearance.

Continuity

 * A reconstructed Griff McDonald is seen as one of the soldiers fighting off zombies. ("Raging Abe Simpson and His Grumbling Grandson in "The Curse of the Flying Hellfish"")
 * The Lard Lad statue comes to life again. ("Treehouse of Horror VI", The Simpsons Game)
 * Pictures in the music room include:
 * The Raven Narrator. ("Treehouse of Horror")
 * Alien Maggie. ("Treehouse of Horror IX")
 * The Manimals. ("Treehouse of Horror XIII")
 * The Grand Pumpkin. ("Treehouse of Horror XIX")