Golduck have webbed hands and feet, ending in broad flippers, which they use to swim in rivers and lakes, much in the way as a duck would move. Their blue bodies are especially adapted to have a great hydrodynamic shape, and they have long tails with which they use to steer. Golduck are sometimes mistaken for the Japanese monster and physical inspiration for Golduck, the Kappa due to their bluish color, general body shape, and webbed hands and feet. Golduck also have red irises, a small, red sphere on their forehead, and four spikes on their head. Although Golduck have no wings, only webbed hands and feet, it is still deemed a duck instead of a platypus.