Sure! Here's a sample Block Breaker game implemented in a single HTML file using JavaScript:
Save the above code in a file with a .html extension (for example, block_breaker.html) and open it in a web browser. You'll be able to play the Block Breaker game by moving the paddle using your mouse on a smartphone or by moving the cursor on a computer. The objective is to break all the bricks with the ball while keeping it from falling off the bottom. Enjoy the game!