Poliwag debuted in Pokemon Red and Green in 1996 as a Generation I Water type based on a tadpole, with the distinctive spiral on its belly. Like other early Pokemon, its cry is a short synthesized call generated for the Game Boy hardware, played in battles and the Pokedex. As Pokemon clips spread through forums, videos and soundboards, individual cries became shareable on their own, and Poliwag's bubbly call stood out for its cute tone. It remains used by fans identifying the species, recreating game scenes or adding a nostalgic Gen I touch.