Sure, here's an example of a simple game implemented as a single HTML file with JavaScript, using pictograms and targeted for smartphone operation. The game is called "PictoFart."
PictoFart
Click on the fart icon to play!
Score: 0
💨
To play the game, simply open the above code in a web browser on your smartphone and click on the fart icon represented by the
💨 symbol. Each click will trigger a fart sound effect and increase your score by 1. A notification will also be displayed indicating that you farted.
Please note that this is a very simple game with minimal functionality, meant only as an example. You can enhance it further by adding more features, levels, sound effects, and graphics as desired.