Sure! Here's an example of a simple car game implemented in a single HTML file using JavaScript. The game allows you to control a car on a generative road using smartphone controls.
To play the game, you can open the HTML file in a web browser on your smartphone. The game will display a canvas with a road and a red car. You can control the car by touching the left side of the canvas to move it left and touching the right side to move it right. The road will continuously generate as you drive.