He is the former long time nemesis of Megamind, and Metro City's previous and grand protector. Like Megamind, he hailed from the same dying galaxy as him and also arrived at Earth, going on to achieve great success and recognition amongst its people while Megamind was shunned by them, leading him to become a supervillain. However, mentally exhausted in his role, he retired and took up music, but looked up on the outcome of his old enemy stepping into the more heroic light. Metro Man at first appears to be the ideal man. Charismatic, friendly, noble, witty, mature, even-tempered, tough, respectful, optimistic, mild-mannered, altruistic, nice, modest, extroverted, thoughtful, rational, observant, merciful, affectionate, and no-nonsense and has a strong sense of justice. However, Metro Man was self-absorbed in his youth and bullied Megamind, which launched Megamind's descent into evil. Due to the powers he acquired from his biology when on Earth, and the privilege of the upbringing he received from his extremely wealthy adoptive Earth parents, Metro Man felt obligated to fulfill some significant purpose; his superpowers made him believe that purpose was to be a superhero, drawing him into conflict with Megamind, who he had unwittingly antagonised his whole life. As Metro Man aged and matured, he eventually recognized the repetitive, pointless conflict between him and Megamind, opting to follow his desires of becoming a musician, going as far as encouraging his former nemesis to find his own purpose as well and apparently making amends with the latter from their constant rivalry. He also recognizes that Megamind has his sense of humanity despite being a supervillain, making Metro Man himself a truly grounded being, too, despite his past narcissism as a superhero.