Sure, below is a simple game implemented using JavaScript in a single HTML file. The game is designed for smartphone operation and uses pictograms.
The above code creates a simple game where pictograms are displayed on the screen, and the player needs to click on the correct pictogram to advance to the next level. If the player clicks on the wrong pictogram, they will lose the game, and the level will reset to 1. The game continues indefinitely, increasing the level each time the correct pictogram is selected.