Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript:
The above code implements a simple particle game where particles move randomly on a canvas and bounce off the walls. The game starts automatically and runs at 60 frames per second. Each frame, the canvas is cleared, particles are updated, and then drawn on the canvas.
You can try it out by saving the code as an HTML file and opening it in a web browser, preferably on a smartphone for better touchscreen operation. The particles will appear as filled rectangles on the canvas, mimicking pictograms. The initial number of particles can be adjusted by changing the loop range in the `init()` function.
Feel free to modify and enhance the game as per your requirements or add more features to make it more interesting.