Sure! Below is a basic example of a billiards game implemented as a single HTML file with JavaScript. The game can be played on a smartphone and utilizes pictograms to represent the billiard balls.
This is a basic template that sets up the canvas element for drawing and creates an initial set of billiard balls. You can extend the game logic to handle ball movements, collisions, and player interactions as per your requirements. Note that this implementation is just a starting point and you would need to add additional functionality and features to make it a complete and playable game.