Sure! Here's an example of a simple Flappy Bird game implemented in a single HTML file using JavaScript:
This code sets up a basic Flappy Bird game using HTML5 canvas and JavaScript. The game starts automatically when the page is loaded. The player controls the bird by pressing any key to make it fly upwards. The goal is to fly the bird through the gaps between the pipes and earn points for each successful pass. The game is over if the bird collides with the pipes or hits the top or bottom boundaries of the canvas. The player can restart the game by pressing the 'Enter' key. The game uses image assets (bird.png, pipeNorth.png, pipeSouth.png) and audio assets (flapSound.mp3, passSound.mp3) which you need to provide in the same directory as the HTML file.
Note: This is a simplified version of Flappy Bird and may lack several features. Feel free to enhance and modify the code according to your requirements.