Sure! Here's a simple billiards game implemented as a single HTML file using JavaScript and enclosed in script tags. The game can be played on a smartphone and uses pictograms for graphics.
When you open this HTML file in a web browser, it will display a canvas element representing the billiards table. A red ball will move around on the canvas, bouncing off the walls of the table.
To play the full game, you would need to implement more game logic, such as shooting the ball, pocketing the balls, etc. But this basic example should give you a starting point for creating your own billiards game.