Sure! Here's a simple implementation of a billiards game using JavaScript and HTML, which can be played on a smartphone:
When you open this HTML file in a smartphone browser, it will display a canvas with a bouncing ball. The ball will move around, bouncing off the walls of the canvas. You can customize the appearance and behavior of the ball, as well as add any additional gameplay elements or rules you prefer.
Note: This is a very basic implementation of a billiards game. To create a more complete game, you would need to add logic for handling ball collisions, player input, scoring, and game rules.