Halloween Horror Nights 1994 was the first Horror Nights that added Scarezones to the event. Horrorwood was the first scarezone that featured the Chainsaw Drill Team, the Lizzie Borden Band and more. This new concept provided a safer way of organizing the crowds on theme park streets. Halloween Horror Nights IV was also the last time Robosaurus would appear at the event. The monstrous robot would not make an appearance for another twelve years.