query: In what fictional work does the planet Cybertron feature?
passage: Cybertron
Cybertron is a fictional planet, the homeworld of the Transformers in the various fictional incarnations of the metaseries and toyline by Hasbro.[1] In the Japanese series, the planet is referred to as "Cybertron" (first shown on Japanese Galaxy Force packaging, although "Cybertron" is the Japanese name for "Autobot") pronounced as Sabertron セイバートロン Seibātoron.[2] Cybertron is populated by mechanical self-configuring modular lifeforms of variable size who can transform into all kinds of machinery. These are called Cybertronians, or Transformers.[3]
passage: List of Transformers planets
Twin Star is a group of two diametrically opposed planets Sperity and Tourin. It was featured in "".Unicron is a fictional character from the "Transformers" universe and toyline. Created by Floro Dery, he was introduced in the 1986 animated film "". and reprised that role in Atari's 2003 Transformers video game. Unicron is a prodigiously large robot whose scale reaches planetary proportions, and he is also able to transform into a mechanical planet. Unicron's origin has expanded over the years from simply being a large robot to being a God of chaos who devours realities. He often employs the help of Decepticons in his work. In some stories, he is considered part of the origin of the Decepticon forces.