According to some of the commenters, this appears to be yet another knock-off. Here is what one commenter wrote:
For those of you who still say this is actually Dong Nyguen who made this game, I'm afraid you're sorely mistaken. Click on his name. While Dong Nyguen took the application "Flappy Bird" off the App Store, his other games, "Super Ball Juggling" and "Shuriken Block" still remain. Therefore, when you click on his name, the other applications should appear on the menu of other applications made by the same creator. They do not, yet still appear on the App Store search tab. As it turns out, the real Dong Nyguen account still exists — But with no Flappy Bird: New Season. Therefore, this is not Dong Nyguen, and you are, in actuality, being tricked.
According to some of the commenters, this appears to be yet another knock-off. Here is what one commenter wrote:
For those of you who still say this is actually Dong Nyguen who made this game, I'm afraid you're sorely mistaken. Click on his name. While Dong Nyguen took the application "Flappy Bird" off the App Store, his other games, "Super Ball Juggling" and "Shuriken Block" still remain. Therefore, when you click on his name, the other applications should appear on the menu of other applications made by the same creator. They do not, yet still appear on the App Store search tab. As it turns out, the real Dong Nyguen account still exists — But with no Flappy Bird: New Season. Therefore, this is not Dong Nyguen, and you are, in actuality, being tricked.