"Epic Games makes Flappy Bird clone in Unreal Engine 4 to show ease of game creation"
http://www.neowin.net/news/epic-games-makes-flappy-bird-clone-in-unreal-engine-4-to-show-ease-of-game-creation
The game, released for iOS and Android devices, is called Tappy Chicken and yes, it is a Flappy Bird clone, However, this game, which is also available as a HTML5 browser title, was created by one person, Epic Game artist Shane Caudle, in about a week with Caudle having no previous experience in programming.
