Indie developer Dong Nguyen has broken his silence following the sudden removal of his popular Flappy Bird game recently. In an interview with Forbes, Nguyen says the game was originally designed to be played when you are relaxed. However, the notoriously difficult game, created in mid-2013, rose to fame recently, with some social network and YouTube users pointing out, comically, just how frustrating it is to navigate Mario-style pipes with a pixelated bird.