I understand that you want to create a game similar to Geometry Dash using JavaScript and HTML. Here's an example of a simple implementation of a game using basic shapes and smartphone controls:
This simple game sets up a canvas element and draws a blue player using the `fillRect()` method. The player can be controlled by touching the left or right side of the screen. The game loop is implemented using `requestAnimationFrame()` to continuously update the game state and render it on the canvas.
Please note that this is a basic example and you can extend it further by adding more features like obstacles, levels, and keeping score.