Sure! Here's a simple jumping game implemented in a single HTML file using JavaScript. It will work on smartphones and uses pictograms as requested:
Please note that you need to replace the `emozi_all/pictogram.png` file path with the actual path to your desired pictogram image. Adjust the `jumpHeight` and `gravity` variables as needed to fine-tune the jump behavior.
To play the game, simply open the HTML file on your smartphone. When you touch the screen, the player will jump. The objective of the game can be customized based on your specific requirements or additional logic can be added for scoring, levels, etc.