Ekans debuted in Pokemon Red and Green in 1996 as a Generation I Poison type, later appearing in Pokemon Red and Blue worldwide. Its name is simply snake spelled backwards, matching its coiled purple design and rattlesnake inspired hiss. In the anime, like many early Pokemon, Ekans speaks by repeating its own name, which turned its cry into a clear character signature. Fans still clip that call for edits and soundboards because it is short, distinctive, and instantly signals a sneaky snake Pokemon without needing any visual cue on screen.