It begins with a small egg. Tap it and a Very Hungry Caterpillar hatches. From there, the game opens up across a series of activities built around caring for the caterpillar as it grows: feeding him, playing with him, tucking him in under his leaf so he gets enough rest, growing flowers, sorting shapes, painting pictures, sailing alongside rubber ducks, and hunting for buried treasure. Enough care transforms him into a cocoon—and from the cocoon, eventually, a butterfly emerges. Then a new egg appears.