Report: Google rejecting Flappy bird clones for being 'spam' - Polygon

Why did Flappy bird clones fail? - Quora

Flappy Bird Removed: Unraveling Why It Was Taken Down

Apple, Google clamp down on Flappy Bird clones; reject games with

Apple and Google are fighting Flappy Bird clones

Gone But Not Forgotten: Flappy Bird Clones Fill The App Store's

Over 800 Flappy Bird Clones Still Exist: Here are the Most

Apple and Google reject Flappy Bird clones; no more apps with

Apple and Google reject Flappy Bird clones; no more apps with

Flappy Bird clones appear: wanna switch a bird for a flying pig

Attack of the Flappy Bird Clones - The New York Times

Apple, Google now rejecting Flappy Bird clones, reports suggest

Ranking The Flappy Bird Clones

Why did Flappy bird clones fail? - Quora

Apple, Google cracking down on 'Flappy Bird' clones