When Flappy Bird left the Play Store and Apple's App Store, it left a vacuum. And since it was pulled, that vacuum has been pulling in all kinds of lint, in the form of knockoffs, clones, or games that simply want to use Flappy Bird's success as promotion for their own games.

It would seem, though, that Google (along with Apple) has begun taking steps to prevent the store from becoming overrun with such entries.

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