Petilil was introduced in Pokemon Black and White, released for Nintendo DS in 2010 in Japan and 2011 internationally, as a Grass type Pokemon from the Unova region. It evolves into Lilligant when exposed to a Sun Stone. Like other Pokemon, Petilil was given a distinctive electronic cry for its in game appearances, and recordings of these cries have circulated among fans for years through Pokedex archives, gameplay videos and sound collections. The short call remains popular because it is instantly recognisable to Generation V players and works as a compact cue for the character.