Certainly! Here's an example of a simple 3D Flappy Bird game implemented in a single HTML file using JavaScript and enclosed in script tags:
To play the game, simply save the HTML code above into a file named "flappy.html" and create image files named "emozi_all/play.png", "emozi_all/bird.png", and "emozi_rabbit.png" in the same directory. Then, open the HTML file in your smartphone's browser and you should see and be able to play the game.
Note: This is a simple implementation of 3D Flappy Bird using HTML5 canvas and JavaScript. It may not have advanced 3D graphics, but gives a 3D effect through the positioning of bird and pipes in different layers. Feel free to enhance and customize the game further as per your requirements!