I honestly think it would take more balloons to hold up that many pigs, but who knows. Anyhow, aim for the balloons and the rest is history.
* Note, the first part of the video shows you where to find the Golden Egg. The second part contains the walkthrough to unlock the Star. Video by FujiToast.
just wait for the pigs to die. Then you will get a score of about 120,000