I understand you want your game to be visible (even if it isn't "your game" by any stretch due to it being Flappy Birds), but Newgrounds is not your dumping ground. The basic code for a Flappy Bird clone is easily accessible to every rookie game designer now, so there's no excuse for such a game to be functionally unplayable. Difficult is one thing, but besides the weird delay on reaction, holding the button makes the character go almost straight up even after you've let go. That isn't good design.
I understand the mobile market is oversaturated, but that's BECAUSE of games like this. I'd be happy to try anything original or even actually playable anytime you're willing to make it. The change background button IS something that any Flappy Robot or whatever would be better off having, but that's not even strictly a change and is basic Flash so no points for that.