Flappy Bird is a side-scrolling mobile game featuring 2D retro-style graphics. The objective is simple yet challenging: direct a flying bird, which moves continuously to the right, between sets of Mario-like pipes. If the player touches the pipes, they lose. The bird briefly flaps upward each time the player taps the screen, and it falls if the screen is not tapped. Each successful pass through a pair of pipes awards the player one point. Created by Vietnamese developer Dong Nguyen, the game became a global phenomenon for its simple yet frustratingly difficult gameplay.