Sure, I can help you create a simple game using JavaScript that can be played on a smartphone. In this game, the objective will be to click on a moving target as many times as possible within a time limit. We'll use pictograms as buttons for interaction.
Here's the code for the game:
Score: 0
To play the game, save the above code in a file with a `.html` extension (e.g., `butt_game.html`). You can then open this file in a web browser on your smartphone. Simply tap on the moving target (a peach emoji
🍑) to increase your score. The game lasts for 30 seconds. After the time is up, an alert will display your final score. Enjoy playing!