Sure, here's an example of a simple game implemented as a single HTML file using JavaScript:
In this game, there are five pictograms represented by different symbols. When a pictogram is clicked, it gets selected and highlighted with a yellow border. You can implement the game logic as per your requirements and add more features based on your needs.
Note: The game will automatically end after 10 seconds in this example (for demonstration purposes). You can modify the endGame() function to include the specific logic for ending the game based on your game mechanics.