The game has some issues, but i think there is something here to build on.
The flappy jump needs tweaked a bit. I felt like I couldnt control the jump height as well as i wanted too. I think if you make the gravity a bit heavier so the player falls a bit faster it would improve the feel of the flappy jump.
Slowing down the screen scrolling or increasing the field of view a touch would help as well.
I really like the idea of the sound coming in as you collected items. It is a bit buggy at the moment but i really like where you were going with it.