Sure, here's an example of a simple game implemented as a single HTML file using JavaScript:
Pictogram Game
Click on the pictograms to score points!
Score: 0
When you open this HTML file in a web browser (preferably on a smartphone), you'll see a game where you need to click on pictograms to score points. The game continuously generates pictograms randomly from a predefined set. When you click on a pictogram, your score increases, and the clicked pictogram disappears before another one appears. The score is displayed at the top of the page. Enjoy playing the game!