Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. It's a timed game where you have to match pairs of pictograms within 50 seconds.
Pictogram Matching Game
Score: 0 | Time: 50s
To play the game:
1. Copy the above code and save it as a `.html` file (e.g., `pictogram_game.html`).
2. Open the saved file in a web browser on your smartphone.
3. The game board will appear with blank pictogram cards.
4. Tap on the cards to reveal the symbols underneath.
5. Try to match all pairs of pictogram symbols within 50 seconds.
6. The score will be displayed at the top, and a message will appear when you win or run out of time.
Note: The game uses some pictograms and their rendering can vary depending on the device and browser used.