Sure! Here's an example of an infinite runner game implemented as a single HTML file using JavaScript and enclosed in script tags. The game is designed for smartphone operation and uses pictograms. In this game, the player controls a black character and needs to avoid obstacles represented by "kkk" symbols. The game will continue indefinitely until the player collides with an obstacle.
Please note that this example is a simplified implementation of an infinite runner game, and you may need to modify and enhance it according to your specific requirements and visual style.