As an AI language model, I can help you create a simple game implemented as a single HTML file using JavaScript. Below is an example of a game that you can play on a smartphone using pictograms.
In this game, you will see four pictograms represented by emojis. You need to click on the pictogram that represents a banana (
🍌) to increase your score. The game will run for 60 seconds (change `timeLeft` to adjust). Once the timer runs out, the game ends, and your final score will be displayed.
Simply copy and paste the above code into a new HTML file, save it with a .html extension, and open it in a web browser on your smartphone to play the game.