Suppaman, sometimes adapted as Sourman, hails from the planet Okakaumeboshi. His civilian disguise is reporter Kenta Kuraaku, a name that echoes Clark Kent when reversed in Japanese order. He transforms into his superhero identity by consuming a pickled plum (umeboshi) and changing clothes within a phone booth. His name blends the Japanese word "suppai" (sour) with "man," parodying Superman and reflecting his sour transformation trigger, emphasized by the hiragana す (su) on his chest. Despite heroic aspirations, Suppaman possesses no actual superpowers, propelling himself belly-down on a skateboard to simulate flight. His personality is marked by cowardice, vanity, and a lack of genuine justice-seeking motivation. He prioritizes personal reputation over others' safety, reacting violently—like throwing grenades—toward villagers who annoy him. Historical accounts reveal preschool nicknames like "Supercrybaby" due to timidity and grade school monikers "Suppa-Mouth" or "Suppa-chan the Piggy" from his excessive appetite. His early life on Okakaumeboshi included attending preschool with Bubibinman, establishing their lasting rivalry. Within the Dr. Slump series, Suppaman appears in manga volumes and anime episodes. He attempts to impress Arale Norimaki and Gatchan in "Our Hero, Suppaman," defeating Arale at rock-paper-scissors but failing in heroics. As Kenta Kuraaku, he robs the Penguin Village Bank in "Untouchable," only to be thwarted by Arale. During the Penguin Village Wars, he creates the Planetary Defense Academy, later betraying the group to ally with Dr. Mashirito before their victory. He permanently loses his house when Obotchaman relocates it, forcing him into tent residence. His spin-off and crossover appearances include antagonizing "Tomato, Girl Detective," taking hostages before arrest by detective Akai Tomato. He interacts with General Blue in Dragon Ball, displaying cowardice after Blue destroys a phone booth, and appears as a contestant in the World Martial Arts Tournament. He features in video games such as "Dr. Slump Arale Part III: Ncha! Bycha," "Super Dragon Ball Z," and "Dragon Ball Z: Dokkan Battle," often in cameo roles. In "Dr. Slump & Arale-chan: Hoyoyo! The City of Dreams, Mechapolis," Suppaman appears within the ensemble cast. His portrayal aligns with established traits: comically ineffective heroics and opportunistic behavior.