Sure! Here's an example of a simple game where you control a circle using touch input on a smartphone. The goal is to avoid colliding with the bricks.
To play the game, you can copy the above code into a single HTML file and open it on a smartphone. The game will start automatically, and you can control the circle by dragging your finger on the screen. Avoid collision with the bricks, as colliding with them will display "Game Over" in red text on the screen.