Sure, I can create a simple smartphone game implemented as a single HTML file with JavaScript. Here's an example of a game where the user needs to guess the pictogram representing a specific word.
To play the game, you can copy the above code into a new HTML file and open it in a web browser on your smartphone. The game will randomly select a word from the provided list, and you will be prompted to enter the corresponding pictogram for that word. Once you enter your guess, an alert will inform you whether your guess was correct or not.
Remember to save the file with a .html extension and ensure your smartphone has JavaScript enabled in its browser settings.
Enjoy the game!