Hi there.
You are looking for the same app Flappy Bird.
I think I can help you. I have the code available, I can send to you IPA file, you can test and if you like I will give you so that you can source distribution on the Apple Store.
I think this would be the fastest way for you to make money from the App Store right now.
I guarantee this is my source code. And if you need to, I can edit on your own.