Sure, here's an example of a simple game implemented as a single HTML file with JavaScript, while using pictograms for smartphone operation:
Pictogram Game
Tap on the correct pictogram to earn points!
Score: 0
In this game, you are presented with a gameboard consisting of four pictograms: apple, banana, orange, and grapes. Your goal is to tap on the correct pictogram (grapes) to earn 10 points. If you select a wrong pictogram, you lose 5 points. The score is displayed at the top, and as you make selections, the score updates dynamically.
Please note that you would need to have the pictogram images (e.g., apple.png, banana.png) saved in a directory called `img` relative to the HTML file for them to display correctly.