Sure, here's a simple game implemented as a single HTML file using JavaScript, enclosed in script tags:
In this game, you control an emoji represented by a pictogram. The game canvas is displayed with a size of 400x400 pixels. The player emoji is initially positioned at the center of the canvas. You can control the player using the arrow keys on your smartphone. The game loop continuously clears the canvas and redraws the player emoji at its updated position based on the keyboard input.
Please note that you'll need to replace `"emozi_all/emoji.png"` with the actual image file path of your preferred emoji pictogram.