The later Bizarro was created by
Lex Luthor, who used the "duplicating ray" on the adult
Superman and hoped to use the duplicate to attack
Superman. However, this Bizarro did not cooperate and instead tried to emulate
Superman. Unfortunately, his attempts to match the original's heroics were clumsy and destructive, and he kidnapped Lois.
Superman resolved this situation by creating a Bizarro-Lois for Bizarro. Feeling rejected by the people of Earth, they moved to the world of Htrae, which had ancient advanced technology which was used to populate the planet with other Bizarros created in the same manner. Almost everyone on Htrae looked like an ugly
Superman (and possessed super powers) or an ugly Lois Lane. When
Superman visited, he was arrested for being normal, but he plea-bargained a proposal to change the shape of the world into a cube for his release.
His only weakness was blue Kryptonite, created by using the same machine to duplicate green Kryptonite. Though Bizarro acts in what he believes to be the best manner, his Bizarro logic often causes him to act for evil.
In the Bizarro world, a cube-shaped planet known as "Htrae", society is ruled by the Bizarro Code, which states that it is a crime to do anything well or to make anything perfect or beautiful. Predictably camp lines abound. In one episode, for example, a salesman is doing a brisk trade selling "Bizarro bonds. Guaranteed to lose money for you". Later in this episode, the mayor appoints Bizarro #1 to investigate a crime, "Because you are stupider than the entire Bizarro police force put together". This is intended and taken as a great compliment.
Later stories introduced Bizarro versions of Superman's supporting cast, including Bizarro-Perry White and Bizarro-Jimmy Olsen, created by using the duplicator ray on characters other than
Superman and Lois Lane, as well as the children of Bizarro and Bizarro Lois. There was even a Bizarro-Justice League and
Legion of Super-Heroes.
"Tales of the Bizarro World" became a recurring segment in Adventure Comics from 1961 to 1962.
On one occasion, Keith Giffen portrayed Htrae itself as being sentient - "Me am the Bizarro World. Planet Earth not think... therefore, me do" - and its only sane inhabitant was the Bizarro Ambush Bug.