The art style and splash screen are very nicely polished, and the concept and execution of the controls are intuitive and well carried out, nice work!
I see you managed to capture the extreme preciseness required of flappy bird esque games, seeing as it's supremely difficult to get consistently.
Only improvements I would add would be to give some randomness to the way the gears move, allowing some replay value after completing the game.
Other than that it's well put together, I'll be attempting to complete it soon! ;)