Sure, I can help you create a simple game using JavaScript. Here's an example of a game called "Particle Catcher" implemented as a single HTML file:
To play the game, you can open the HTML file in a web browser on your smartphone. The objective of the game is to avoid colliding with the particles (represented by colored circles) using touch controls to move the blue square around the canvas.
Please note that this is a very basic game implementation for demonstration purposes. You can customize and enhance the game according to your preferences by modifying the code. Good luck!