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Flappy Bird developer says he took down game because it was addictive - Los Angeles Times

Flappy Bird Online reaction - what really happened?

Building Flappy Bird #2 - Let's Code

Flappy bird 2 - 32 levels

Flappy Bird Re-releasing soon as Flappy Angry Birds (April Fools!)

Behind the Vietnamese in-group hostility towards Flappy Bird

2 - Code.org

Flappy Bird is back, and now you can play with friends (if you have an Fire TV) - Polygon

The Madness That Is Flappy Bird by Joey Creighton - iSchool

Perfectly Recreating Flappy Bird in HTML5 - Showcase - PlayCanvas Discussion