Critic Graham Sleight commented in an analysis of "Doctor Who" monsters that the use of Yeti robots by the Great Intelligence was uninteresting as they provided merely a physical and voiceless threat. Some reviewers have seen this as a strength, with Nick Page felt that the Yeti being controlled by the Great Intelligence gave them greater menace, arguing that because "the Great Intelligence... always turned off their power when it was not required", this creates suspense when the characters interacted with a dormant Yeti.