Creator removes Flappy Bird despite making $50K/day

Well he did say it wasn't legal issues

[tweet]432228383095668737[/tweet]

and Nintendo denied having taken any action.

When a company like Nintendo is involved and in the popularity of such a game that everyone likes, they're not going to be willing to tarnish their name in the public's eye and so they made Dong Nguyen take down the game due to legal issues but make it look like he took it down out of his own free will. Just because he said no legal issues doesn't mean he didn't receive them, he may have except this was kept super private so both parties don't lose face.