Sure! Here's an example of a simple Block Breaker game implemented as a single HTML file using JavaScript and enclosed in script tags:
To play the game, simply open the HTML file in a web browser, and you should see a canvas where you can control the paddle using the arrow keys (or touch events on a smartphone). The objective of the game is to destroy all the bricks by bouncing the ball off the paddle and into the bricks. When the ball hits a brick, it will disappear. If the ball touches the bottom edge, you lose the game and the page will be reloaded.