Random : 5 things you didn't know about Flappy Bird

1. Flappy Bird was made in just two days.
2. It was made way back in May 2013.
3. It made a revenue of $50,000 in a day due to pop-up advertisements.
4. Clumsy Bird, Flappy Fish, Flappy Angry Bird are all clones of Flappy Bird.
5. Don Nguyen received death threats after he pulled down the game.