The main characters in the game are square birds who must fly around the level and complete tasks. The player has to control them with a mouse, touchpad, or sensor screen. The birds have to fly through the air. Each level has many obstacles, such as pipes, which must be flown around. Birds must also collect bonuses that will unlock new birds and levels. Each time the player presses the screen, the bird flies upwards. But after a few seconds, it drops lower.