Sure! Here's a simple implementation of a game similar to Geometry Dash using HTML, CSS, and JavaScript. Please note that this is a simplified version and may not have all the features of the actual game.
To play the game, simply save the above code as an HTML file and open it in a web browser on a smartphone. The game will start automatically, and you can control the player by touching the screen to make it jump. Avoid colliding with the blue obstacles and try to achieve the highest score possible. Enjoy playing!