Sure, I can help you create a simple particle game using JavaScript enclosed in script tags within a single HTML file. Below is an example of how you can implement it:
This example creates a canvas on which particles (represented by the 🌟 pictogram) move around and bounce off the walls. The game starts automatically and will continue until the user closes the page. Adjust the number of particles by changing the value inside the `for` loop (`for (let i = 0; i < 50; i++)`).
You can copy the HTML code into a file with a .html extension and open it in a web browser to play the game. The particles will move and bounce around the canvas.