Hamburg serves as a combatant and leader of the Groggy Monsters, a core unit within the Foxy Pirates. He joined Captain Foxy alongside Porche as one of the crew's earliest members. Resembling a large gorilla-like human, Hamburg is paradoxically the smallest member of his own Groggy Monsters team. His attire consistently features the Foxy Pirates' standard mask and long-sleeved gloves, accessorized by a distinctive leopard-patterned scarf. Hamburg is characterized by frequent, boisterous laughter, often directed at his own captain's misfortunes or erupting during tense situations. His personality aligns with the crew's dishonest nature; he regularly cheats during competitions, confident that referees will deliberately overlook violations. His dynamic with Captain Foxy blends loyalty with mockery; Hamburg readily assists Foxy's cheating schemes yet chuckles openly at his captain's failures. Within the Groggy Monsters, he shares a strong camaraderie with teammates Pickles and Big Pan. This bond enables seamless coordination during events like the Groggy Ring, forming the foundation of several signature combo attacks: the **Gorilla Throw**, where Hamburg catches and throws an opponent after Big Pan's initial strike; the **Hamburger Hammer**, seeing Hamburg propelled by Pickles to slam airborne targets downward with his iron gauntlets; the **Size Attack S-M-L**, a sequence where Hamburg punches foes toward Pickles, who knocks them upward for Big Pan to smash downward; and **Monster Burger**, where all three wield concealed weapons—Hamburg employing iron clubs—to overwhelm opponents while referees ignore the infraction. Hamburg debuted in the Long Ring Long Land Arc, participating in the Davy Back Fight against the Straw Hat Pirates. He aided Foxy's cheating in the Donut Race and later battled Zoro and Sanji in the Groggy Ring with his team. Despite initial success, they were defeated by the Straw Hats' counterattacks. Following the crew's overall loss, Hamburg celebrated the event's conclusion as Luffy claimed the Foxy Pirates' Jolly Roger. Beyond canon, Hamburg featured in the Foxy's Return Arc, fleeing with Foxy and Porche after defeat. During the Spa Island Arc, he allied with a corrupt resort owner to steal a notebook detailing jewel-making techniques, a plot thwarted by the Straw Hats. In the Nebulandia special, he participated in a mushroom-eating contest interrupted by a trap targeting the Straw Hats. He also appeared at the Pirate Festival depicted in *One Piece: Stampede*. Most recently, during the Egghead Arc, Hamburg traveled by boat with Foxy and Porche, overhearing but dismissing the significance of Vegapunk's global broadcast. Hamburg's role remains consistent across all appearances as a supporting combatant, emphasizing comic relief and the Foxy Pirates' deceptive tactics, with no substantive character development.