Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. The game is a rock-paper-scissors simulator with pictograms and smartphone-friendly operation:
Rock Paper Scissors Game
Select your choice:
🗿
📄
✂️
To play the game, you can save the above code as an HTML file (e.g., `game.html`) and open it in a web browser. The game presents three pictogram choices (rock, paper, scissors) that you can select on your smartphone by tapping on the respective pictograms. After making a choice, the game chooses a random option for the computer and displays the result (win, lose, tie) on the screen. Enjoy playing!