Sure, I can help you create the hardest game ever as a single HTML file using JavaScript. Here's an example implementation to get you started:
The Hardest Game Ever
Congratulations! You've completed the hardest game ever!
In this example, we have a simple game with a set of pictograms displayed as images. The goal is to click on all the pictograms to "complete" the game. Once all the pictograms are clicked, a message appears congratulating the player.
You would need to replace the `src` attribute of the `<img>` elements with the actual pictogram image URLs you want to use.
Please note that the game logic in this example is quite simple, but you can modify and enhance it as per your requirements to make it truly challenging.