Sure! Here's an example of a simple car racing game implemented as a single HTML file using JavaScript:
Car Racing Game
In this game, you control a car using the tilt of your smartphone. The car moves horizontally within the game board area, and the game ends if the car hits the border. The visual representation of the car is assumed to be an image file called "car.png," which you can change to your own image.
Please note that this example is a basic implementation and can be expanded upon to add more features, levels, or scenarios based on your requirements.