Sure! Here's a simple game implemented as a single HTML file using JavaScript. It's a guessing game where you have to guess the secret pictogram. You can play it on a smartphone by tapping on the pictograms to make your guess.
Pictogram Guessing Game
Guess the secret pictogram:
In this game, there are four pictograms displayed on the screen. The player needs to tap on the pictogram they think is the secret one. If their guess matches the secret pictogram number (in this case, 3), they receive a congratulatory message. Otherwise, they receive an 'Oops!' message and can try again.
Note: Replace the `src` values of the `<img>` tags with the actual paths to your pictogram images.