This pond's full of dragonflies. Some of them transport food, that they clasp between their legs. Other dragonflies try to steal away that food. They do so by tipping the diligent dragonfly from above, so that it will drop some food. Another dragonfly catches it. Will you lend them a hand? Watch out for the rhinoceros beetles!
You control two dragonflies with your mouse cursor. As soon as a small dragonfly's flying beneath you, you can tap the undermost dragonfly, so that it will drop its food.