Angry Birds began as a mobile game released by Rovio in 2009, built around birds launching themselves at pigs who stole their eggs. Red became the face of the flock and the wider franchise, which later expanded into animated series and The Angry Birds Movie in 2016. Short clips of his squawks and yells were shared online as reaction sounds and soundboard buttons. The battle cry remains popular because the anger is instantly readable, family friendly and funny even without any game context.