Sure! Here's an example of a Block Breaker game implemented as a single HTML file using JavaScript:
This code will create a Block Breaker game where you control a paddle to bounce a ball and break bricks on the screen. You can control the paddle's position using the left and right arrow keys on a computer or by touch on a smartphone. The game ends when you miss the ball and it touches the bottom of the screen. Every time you break all the bricks, you win the game.