Sure! Here's an example of a billiards game implemented as a single HTML file using JavaScript. This game assumes smartphone operation and uses pictograms for the balls. You can play the game by dragging the cue ball and trying to knock the target ball into the pocket while avoiding the enemy balls.
In this game, you can drag the cue ball (the white ball) around the green table and try to hit the target ball (symbolized by a different pictogram ball) into one of the black pockets. However, be careful not to touch the enemy balls (also represented by pictogram balls), or it will be game over.
Please note that this is a simplified example, and you would need to provide the actual pictogram images ('emozi_all/pictogram.png', 'emozi_all/ball.png', 'emozi_all/ball.png') to make the game visually appealing.