Flappy Bird
The rise and fall of Flappy Bird was a doozy. This was a popular app that became extremely competitive among teenagers and young adults. It was almost as crazy as Angry Birds, and probably would have reached that level of fame before the developer took it off the market because people were getting too "addicted" to it, as the creator has said. Only ancient artifacts, such as an iPhone 5, would have something like this on it...