Sure! Here's an example of a simple game where you play as a character and try to avoid getting hit by obstacles. When you get hit, it will display a death screen saying "Game Over".
To play the game, you can copy the code above and save it as an HTML file (e.g., `game.html`). Then, open the file in any web browser on your smartphone. The game will start automatically, and you can control the character using the touch controls. Avoid the red obstacles, and if you get hit, the game over screen will be displayed.