Sure! Here's an example of a simple Block Breaker game implemented as a single HTML file using JavaScript:
To play the game, simply save the above code as a .html file and open it in a web browser. You'll see a canvas element representing the game area with a paddle at the bottom, blocks at the top, and a ball bouncing around. Use the left and right arrow keys to move the paddle and prevent the ball from hitting the bottom. The objective is to destroy all the blocks by bouncing the ball off the paddle and hitting the blocks.
Please note that this is a basic implementation of a block breaker game, and you can further enhance it by adding more features or improving the graphics as per your requirements.