However, therein lies the problem as there will be inherent limitations to a movie that is based on shooting birds with a sling shot at green pigs. (sarahsbackstagepass.com)
Each level gets more and more complicated as there are more obstacles to work around, more green pigs to kill, and birds with different abilities to launch. (nerdfitness.com)
And the script stays true to the main rivalry, presented to us much like an origin story of the game's very first edition, when a colony of green pigs inhabits Bird Island and they begin to show interest in all the unhatched eggs in the village. (lights-camera-jackson.com)