Biollante first appeared in Godzilla vs. Biollante from 1989, the second film in Toho's Heisei series. Created by scientist Genshiro Shiragami, the creature combines Godzilla cells with a rose and DNA from his late daughter Erika, giving it both plant and animal traits. Its unusual screeching roar helped set it apart from other kaiju and has kept the character a cult favorite among Godzilla fans. The sound circulates online in kaiju edits, roar compilations and monster ranking videos where its organic cry stands out.