Sure! Here's an example of a simple game implemented as a single HTML file, using JavaScript and pictograms. It's designed for smartphone operation:
TopGun Game
Score: 0
In this example, we have a simple game where pictograms randomly appear and the player needs to tap/click on them to increase their score. The game starts automatically upon loading the HTML file and works on smartphones as well. The score is displayed at the top, and the pictograms (represented by images) are displayed within the game area.