Dora-rinho is a feline-model robot with a vibrant green body, white facial features, a red nose, and yellow cheek markings mimicking whiskers. His athletic attire includes an orange soccer uniform marked by a bold red "B" on the chest, red socks, black cleats, and a red collar featuring a tiny soccer ball charm. A fourth-dimensional pocket on his torso stores assorted gadgets, occasionally supplemented by oversized tools from his 11 Mini-Dora companions—small robotic aides perpetually at his side.

Cheerfully naive and perpetually optimistic, he boosts team spirits even in perilous scenarios, often oblivious to looming dangers. His memory resets every three steps from his starting position, a quirk that unexpectedly aids survival, such as bypassing biological needs in hostile environments. He exhibits an aversion to supernatural themes.

A natural soccer talent, Dora-rinho doubles as star striker and coach for an unnamed football team alongside Nobinho, a fusion of Nobita Nobi and Robinho. His gameplay relies on lightning-fast reflexes and improbable long-range goals rather than tactical analysis. He joins The Doraemons, a global collective of robotic cats connected via Friendship Telecards for interdimensional teamwork, on diverse escapades.

His closest confidante, Dora Med III, often assumes a caretaker role, while Mini-Doras toggle between loyal aides and mischievous accomplices. Though academically average at Robot School, he displays flashes of ingenuity under pressure. His culinary trademark involves dousing dorayaki pastries with Tabasco sauce, diverging from peers’ flavor preferences.

His selective amnesia evolves into a narrative tool, enabling loopholes in physical laws—like ignoring environmental constraints—through deliberate forgetfulness. While primarily comedic, this trait occasionally pivots plot trajectories, cementing his role as a mercurial yet steadfast ally.