Circus of Horrors marks the following: 1) The seventeenth journey-based expedition event of Homescapes, after Wood Estate Mystery, Halloween Nightmare, Winter Adventure, Mysteries of Atlantis, Lost Island, Mysterious Festival, Tortuga Island, Butler’s Peak, Austin, Magic, and Dragons, Secrets of Area 551, Ice Age, Chocolate Factory, Rescue Chloe, Innesport Mystery, Desert Tales and Once Upon a Time in the Wild West. 2) The first journey-based expedition event to not start at the Mansion. Instead, it starts after the player gets teleported to the event itself. 3) The sixth journey-based expedition appearance of Katherine, after the Mysterious Festival, Austin, Magic, and Dragons, Ice Age, Chocolate Factory and Desert Tales. 4) The fourth time in a Scapes game where Katherine cries, after Flower Shop 2021, Broom Family Observatory and Wasp Queen Expedition. 5) The direct continuation of Spooky Halloween 2021 redesign, as Scary Larry continues his role as an Halloween icon from the October 2021 update. 6) The first journey-based expedition event to feature the antagonist following Mason Maze's redemption in the Homescapes universe. 7) The third journey-based expedition event to feature the main antagonist yelling "NO-O-O-O-O-O-O!!!" when his plans were foiled by Austin and his sidekicks, after the Chocolate Factory and Desert Tales, thus making Felix Crow the third villain to do so after Doctor Shadow and Sarzul. 8) The fourth time where Katherine kisses Austin, after The Spy and the Butler redesign, Austin, Magic, and Dragons journey-based expedition and Ranch Adventures farm-based expedition.
