Halloween has officially arrived at Universal Studios Hollywood.

Halloween Horror Nights opened Thursday at the theme park where screams of excitement turned to screams of fright. Guests rushed into the park to face this year’s collection of haunted houses, which included the Upside Down from Netflix’s “Stranger Things 5” and the vampire-infested Club Juke from “Sinners.”

Within just 30 minutes of opening, the wait for “Sinners”” had already reached 60 minutes. “Hellraiser,” which made its Halloween Horror Nights debut, had a 50-minute wait, while “Killer Klowns From Outer Space,” “Evil Dead Burn” and “Killceañera: Music by Slash” were each at 30-minutes. “Ozzy Osbourne: Prince of Darkness” reached 35-minutes, and “Stranger Things 5” and “Dead, Deader, Deadest” sat at 25 minutes.

The scares extended beyond the haunted houses, with characters from this year’s lineup of horror roaming the park. Among them was a crazed, blood-soaked Nikki, from “Obsession.” She emerged from the crowds with the same unnerving affection she carried throughout the film, telling guests she loved them “so, so much” before slipping back into the masses in search of her next victim. Nikki doesn’t have a designated meeting location, instead roaming the park at random. Fans of the film will have to seek her out, or perhaps, Nikki will see vistors out!