Sure, I can help you create a simple game using JavaScript enclosed in script tags within a single HTML file. The game will be playable on a smartphone and will incorporate pictograms. Here's an example of a game where you need to guess the correct pictogram:
To play the game, you can open the HTML file on a smartphone with a web browser. The game will display a random pictogram, and you need to enter your guess in the provided input field and click the submit button. If your guess matches the displayed pictogram, you will receive a "Correct!" alert; otherwise, you will be alerted with "Incorrect! Try again." The game will then generate a new pictogram, and you can continue playing.