Sure! Here's a simple football game implemented as a single HTML file using JavaScript:
This code sets up a simple browser-based football game where you control one paddle with your mouse, and the other paddle is controlled by AI. The goal is to bounce the ball off your paddle and prevent it from hitting your goal. You can use pictograms or add your own visual elements.
To play the game, simply save the code into a text file with a `.html` extension and open it in your web browser on a smartphone. You can then control one paddle by moving your finger on the screen and try to score goals against the AI-controlled paddle.
Please note that this is a basic implementation and can be further enhanced with additional features, such as scoring, sound effects, or improved visuals, based on your specific requirements.