The document provides instructions for developing a Flappy Birds game in multiple parts. It begins by explaining how the bird falls and flaps in the game (part 1). Next, it instructs the reader to add enemies and goodies as additional sprites that fly across the screen, and to develop a scoring system where the score increases when touching goodies and decreases when touching enemies (part 2). Finally, it challenges the reader to further develop the game by adding more sprites, making them move randomly, and including additional features (part 3).