Sure, here is a basic implementation of Flappy Bird game using JavaScript and HTML5 canvas. Please note that this is a simplified version and there is still room for improvement.
To use this code, save it as a `.html` file and open it in a web browser. The game should start running, and you can control the bird's movement by tapping on the screen.
Please note that you need to provide the image file "emozi_all/bird.png" in the same folder as the HTML file for the bird's texture. Additionally, this implementation may require additional improvements for better gameplay experience.