Sure! Here's a simple implementation of an endless runner game like Temple Run using JavaScript and HTML:
To play the game, simply copy and paste the above code into a blank HTML file, save it as "endless_runner.html", and open it in a web browser. The player can control the character with the left, right, and up arrow keys on their smartphone. The player needs to avoid colliding with the randomly generated obstacles (red squares) and can also jump by pressing the up arrow key. If the player collides with an obstacle, a "Game Over" message will be displayed, and the game will restart automatically.
Note: The above code is a basic implementation and can be enhanced further with additional features and improvements to create a more complete and enjoyable game experience.