DUTOIT has a point. However it's the name that's more being blocked than the game play. They feel the people cashing in on the word "flappy" is being abused.
You can call your game another name like "Derpy Dragon" another clone game and then pass onto the IOS store.
I am interested in the work. PM with the details. as in
Do you have a design document
are all the assets for everything done.
I'm ok at level design, but you can tweak after wards
and what your offering for the work.