Photos: Halloween Horror Nights at Universal Studios Hollywood

An actor on stilts walks through a scare zone inspired by “The Purge” film trilogy at Halloween Horror Nights at Universal Studios Hollywood. The event runs on select nights through Nov. 5.

(Allen J. Schaben / Los Angeles Times)

Sept. 15, 2016 8:30 PM PT

Halloween Horror Nights at Universal Studios Hollywood

An actor catches guests off-guard in the scare zone at Halloween Horror Nights.

(Allen J. Schaben / Los Angeles Times)

John Murdy, creative director of Universal Studios Hollywood and executive producer of Halloween Horror Nights, at the Psycho House at Universal Studios Hollywood.

(Allen J. Schaben / Los Angeles Times)

An actor brings his character to life in “Eli Roth Presents the Terror Tram.” Roth, the producer of such horror films as “Hostel,” “Cabin Fever” and “The Stranger,” has been recruited to remake the park’s iconic tram ride by populating it with maniacal, serial killer clowns.

(Allen J. Schaben / Los Angeles Times)

Actors scare guests near a wrecked airliner in “Eli Roth Presents the Terror Tram.”

(Allen J. Schaben / Los Angeles Times)

Actors scare guests near a wrecked airliner in “Eli Roth Presents the Terror Tram.”

(Allen J. Schaben / Los Angeles Times)

A scene from “Eli Roth Presents the Terror Tram” at the annual Halloween Horror Nights employee run-through at Universal Studios Hollywood.

(Allen J. Schaben / Los Angeles Times)

A scene from “Eli Roth Presents the Terror Tram” at the annual Halloween Horror Nights employee run-through.

(Allen J. Schaben / Los Angeles Times)

A scene from “Eli Roth Presents the Terror Tram” at the annual Halloween Horror Nights employee run-through.

(Allen J. Schaben / Los Angeles Times)

Actors with chain saws greet guests during Halloween Horror Nights at Universal Studios Hollywood.

(Allen J. Schaben / Los Angeles Times)

An actor scares a woman at the annual Halloween Horror Nights employee run-through. (Allen J. Schaben / Los Angeles Times)

An actor scares guests at the annual Halloween Horror Nights employee run-through.

(Allen J. Schaben / Los Angeles Times)

Actors scare guests at the annual Halloween Horror Nights employee run-through.

(Allen J. Schaben / Los Angeles Times)

Actors with chain saws scare guests at the annual Halloween Horror Nights employee run-through.

(Allen J. Schaben / Los Angeles Times)

An actor appears in a maze in which three chapters of “American Horror Story” come to life. The maze was designed by the TV series’ creator, Ryan Murphy.

(Allen J. Schaben / Los Angeles Times)

An actor catches guests off-guard in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

An actor appears in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

Three chapters of “American Horror Story” come to life in a maze designed by series creator Ryan Murphy.

(Allen J. Schaben / Los Angeles Times)

A clown stands at the entrance to “Eli Roth Presents the Terror Tram” at Universal Studios Hollywood.

(Allen J. Schaben / Los Angeles Times)

An actor appears in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

Actors appear in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

An actor catches guests off-guard in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

Guests react to an actor in a maze in which three chapters of “American Horror Story” come to life.

(Allen J. Schaben / Los Angeles Times)

Three chapters of “American Horror Story” come to life in a frightening maze that takes guests through Ryan Murphy’s horror anthology to encounter scenes and characters designed to jolt them to the core.

(Allen J. Schaben / Los Angeles Times)