Dr. Mashirito stands as the primary antagonist across the *Dr. Slump* series. His character design and personality draw direct inspiration from Akira Toriyama's first editor, Kazuhiko Torishima, with his name forming an anagram of "Torishima." Initially portrayed as a rival to Senbei Norimaki, Mashirito is a brilliant yet morally corrupt scientist fixated on world domination and proving his intellectual superiority. His initial conquest attempt centers on the robotic suit Caramel Man 001. Consulting a magic mirror that reveals Arale Norimaki as the world's strongest robot, Mashirito journeys to Penguin Village to confront her. This endeavor fails when Gatchan consumes the mecha while Mashirito is distracted trying to remove Arale’s glasses. Undeterred, he engineers numerous subsequent "Caramel Man" models: - Caramel Man 002, an ostrich-like racing machine deployed in the Penguin Village Grand Prix, generated distracting feces and altered abilities based on paint color. - Caramel Man 003, a crab-shaped vehicle crafted to resist Gatchan’s metal-eating tendencies, featured rubber claws and projectile feces. - Caramel Man 004, later renamed Obotchaman, was designed as Arale’s equal but rebelled upon uncovering Mashirito’s deception, ultimately becoming Arale’s ally and romantic partner. Following repeated defeats, Mashirito progressively replaces his organic body with cybernetic components, evolving through several forms: - Caramel Man 008, an early cyborg iteration destroyed accidentally. - Caramel Man 009, his final and most advanced robotic form. During the "Who’s the Strongest in the World?" tournament, he battles Arale, renders her unconscious, but is obliterated by Obotchaman’s N’cha Cannon, reduced to a single bolt. Despite this physical destruction, Mashirito returns as a ghost, pledging to persist in his quest for domination. He later escapes from Hell (or HFIL) in *Dragon Ball Super*, disrupting an awards ceremony by drugging Arale and Gatchan with "Playtime X" to induce uncontrollable playfulness. Confronted by Trunks and Mr. Satan, his ghostly form proves impervious to physical attacks. Bulma ultimately summons Beerus, who erases Mashirito from existence using Hakai, destroying both his ghost and soul. Paradoxically, Mashirito reappears alive in *The Brief Return of Dr. Slump*, hosting the "Penguin Village Game Grand Prix" disguised as Akira Toriyama before unleashing Caramel Man 010. He later emerges as a Sentai-style villain defeated by Arale’s "Ararangers," resulting in his damnation by King Yemma—though subsequent chapters depict him alive without explanation. In other media, he antagonizes protagonists in *Jump Super Stars* and *Jump Ultimate Stars* using "Protagonist Tractor Beams" and Caramel Man 010–011, though these schemes fail comically. Mashirito’s legacy includes a son, Dr. Mashirito Jr., creator of the anti-Arale robot Abale. His creations and personal transformations reflect persistent themes of mechanical escalation and absurd rivalry, cementing his role as a recurring symbol of megalomaniacal ambition tempered by comedic ineptitude.