Gomamon is a marine beast Digimon with white fur maintaining body temperature and red fur along its back that bristles when angered, reacting to emotions; this fur lengthens and turns brown with age. Its claws can shatter solid ice. Known for a mischievous personality that fiddles with everything it sees, Gomamon exhibits a free-spirited, perceptive, and challenging demeanor, often using humor and direct confrontation to address denial or emotional conflict in others. As the partner Digimon of Joe Kido, Gomamon debuted in *Digimon Adventure*, digivolving from Bukamon to protect Joe from Kuwagamon. Throughout the series, Gomamon evolves into Ikkakumon (Champion), Zudomon (Ultimate), and Vikemon (Mega) during battles against threats like Devimon, Etemon, and the Dark Masters. A pivotal moment occurs when Joe prioritizes Takeru's safety over his own fears, enabling Ikkakumon's digivolution to Zudomon to defeat MegaSeadramon. Post-*Adventure*, Gomamon temporarily loses the ability to reach Ultimate level until Azulongmon restores this power in *Digimon Adventure 02*. In *Digimon Adventure tri.*, Gomamon's relationship with Joe centers on pushing him to confront his avoidance of responsibility. During the "Determination" arc, Joe's fear of adulthood and battles strains their bond, leading Gomamon to briefly run away. After Joe acknowledges his neglect and reconciles, accepting his role as a DigiDestined, their emotional resolution triggers Gomamon's evolution to Vikemon to fight an infected Imperialdramon, symbolizing Joe's newfound reliability. A "reboot" event later temporarily separates the DigiDestined from their partners. Post-reboot, Gomamon reappears in his Rookie form but retains memories of his bond with Joe, immediately rejoining him. In *Digimon Adventure tri.: Future*, Gomamon participates in the final battle against Ordinemon, the fused entity of Meicoomon and Ophanimon. While he achieves no new evolutions here, he fights alongside the other partner Digimon, contributing to restoring stability across both worlds. Post-battle, Gomamon remains with Joe as they prepare for future challenges, underscoring their enduring partnership. Gomamon appears in video games like *Digimon World Re:Digitize Decode*, where interactions with Joe, including disagreements over battle strategies, reflect their dynamic of mutual growth. In *Digimon Story: Cyber Sleuth*, he is recruitable but lacks unique story integration.