Sure, here's an example of a simple game called "Pixels Fighting" implemented as a single HTML file using JavaScript and pictograms:
In this game, you control a player represented by a smiling face emoji (🙂) using touch events on a smartphone. The objective is to avoid colliding with the enemy represented by an evil face emoji (😈). If a collision occurs, the game over message is displayed. The game uses a simple game loop implemented with the `requestAnimationFrame` function to continuously update the canvas and check for collisions.
Please note that this is a minimal example and can be expanded upon to add more features, levels, or improve the gameplay as per your requirements.