Flappy Bird is a 2013 mobile game, developed by Vietnam-based developer Nguyễn Hà Đông (Dong Nguyen) and published by .GEARS Studios, a small, independent game developer also based in Vietnam. The game is done in a side-scrolling format, with players controlling a bird attempting to auto insurance fly between rows of green pipes without coming into contact with them. The developer created the game over several days, using a bird protagonist which he had designed for a cancelled game in 2012.