Golduck is a blue, bipedal, duck-like Pokémon. It has red eyes, a cream-colored beak, and four spikes on the back of its head. There is a small, red gem on its forehead. It has webbed hands and feet, which it uses to swim in rivers and lakes. Its body is especially adapted to have a hydrodynamic shape, and it has a long tail that it uses as a rudder to steer.