"Flappy Bird was designed to play in a few minutes when you are relaxed," says the developer. "But it happened to become an addictive product. I think it has become a problem. To solve that problem, it's best to take down Flappy Bird. It's gone forever."
Even though the game has been removed, if you have it installed you can continue to play it. The game is extremely simple in nature, but frustrating. You tap the screen to get your bird through a series of green Mario-esque pipes without hitting anything. Despite how simple it sounds, most players have not broken the 100 point threshold that takes them out of the "noob" standings.
Nguyen also confirmed that his life was no longer peaceful and that "my life has not been as comfortable as I was before. I couldn't sleep."