 As Rimmer and Cat (Danny John-Jules) wait for him to recover in the Medical Unit, Kryten (Robert Llewellyn) and Holly reveal the creature to be a man-made genetic mutant called a "Polymorph", designed to leech off of its target's negative emotions, revealing that when Lister suffered immense fear when the creature attacked, it drained him of it and has now left him all too eager to face any danger.To avoid it, the others seal Lister away and prepare to escape with a "Starbug" for a getaway.However, the Polymorph manages to capture each on their own, after an accident with heat-seeking bazookoids, and trick them into exposing a negative emotion – Cat loses his vanity; Kryten loses his guilt; and Rimmer loses his anger.