Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. The game is a car racing game where you control a Mercedes car using smartphone gestures. Instead of pictograms, I'll use simple ASCII art for the car and road.
To play the game, you can open the HTML file in a web browser that supports touch events (such as Chrome on a smartphone). The game starts when you touch the road, and you can control the Mercedes car by swiping left or right on the screen. The car moves accordingly, and you can enjoy playing the car racing game on your smartphone!