Bizzaro's common origin story is that he was accidentally created from a "duplicating ray" that malfunctioned. They were trying to clone Superboy but failed. Later in the timeline, Bizarro is created in his adult form when Lex Luthor recreates the duplicator ray. He created him to attack and destroy Superman but instead, Bizzaro tries to imitate him as much as possible and does not completely follow his orders. Bizzaro is very dull-witted and clumsy. Bizzaro eventually creates another duplicate of himself using the "duplicating ray" only this time he has the looks of Superman. He asks for Lois Lane's hand in marriage but is rejected. this leads him to kidnap her but this issue is resolved when using another duplicator ray to create a "Bizzaro Lois Lane". They retreat to the planet of "Htrae", a cube-shaped planet, where they use its advanced technologies to populate the planet. It later becomes known as, "Bizarro World".
Bizzaro breathes fire and shoots frozen beams from his eyes, which exactly counterparts superman's heat vision and super breath.