If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Once upon a time there was a mother duck. She and her newborn went out for a day. Her loved one got lost and found his way into a dangerous bubblefield. She runs after him! But she gets trapped inside a dangerous bubble herself. Her son is going to save her and you have to help him. This duck has the same idea as the Angry Birds.