As a programmer, I can create a simple game using JavaScript within a single HTML file. I will assume that you want the game to be played on a smartphone and that pictograms should be used if possible. Here's an example implementation:
This implementation creates a simple game where the player controls a blue square using touch events on a canvas element. The player's position is updated based on the touch coordinates, and the canvas is cleared and redrawn in each frame of the game loop to show the updated state.
Feel free to modify the game logic and appearance based on your preferences. You can add elements like buttons, scoring mechanics, or levels to make the game more complex.