Sure, here's an example of a simple particle game implemented in a single HTML file using JavaScript and pictograms:
In this game, particles are represented by pictograms and appear randomly within a game area. The player's goal is to click on the particles to earn points. The score is displayed at the top of the game area.
Please note that you would need to replace the `emozi_cat.png` with your own pictogram image that represents the particles. Also, feel free to customize and enhance the game according to your specific requirements.