Despair Squid

The Despair Squid is the main antagonist from Red Dwarf episode Back to Reality. It is a gigantic sea squid-like whose ink has hallucinatory and despair-inducing properties which usually force a victim to commit a suicide.

History
The Despair Squid is created by the crew of the ocean seeding ship, SSS Esperanto. The crew's mission is to find a potential Earth-like planet covered by ocean, introduce primitive life-forms to it and finally speed up their evolutionary process. They do so and even manage to get 5 million years of evolution in 3 solar years. However, when they crashed onto the ocean floor, one of their sea creations, the Despair Squid, attacked them. It shoots out hallucinogenic ink which gets into SSS Esperanto. It causes despair-inducing hallucinations to the entire crew who then all commit suicides.

In next years, the Despair Squid successfully wipe out all fish and other sea creatures. It ate all of them or its ink cause them to end it all by voluntarily closing their own gills.

Many years later, the Boys from the Dwarf find SSS Esperanto. Much to their horror, it is full of corpses of people and fish that all committed suicides. When they discover the deaths were caused by hallucinogenic ink from the Despair Squid, they quickly leave the ship to their Starbug. Unfortunately, the Despair Squid notices them and hits their craft with its ink. In order to flee from the Squid, Starbug crashes and explodes.

The ink causes the Boys to suddenly wake up in an arcade room. They discover they have been playing Red Dwarf - The Total Immersion Video Game for four years. Recognizing their new identities ends very bad: Lister is a fascist dictator, Rimmer can't no longer blame his failures on others, the Cat loses his charm and Kryten kills a human. They are about to commit a suicide when Holly manages to awaken them. She then revealed the Starbug crash and the fascist world were just hallucinations caused by the Despair Squid's ink.