Sure! Here's a simple implementation of a Block Breaker game using only a single HTML file with JavaScript:
This implementation creates a simple block breaker game where you control a paddle using the arrow keys on a smartphone. The game canvas is a black area, and the paddle is represented by a white rectangle at the bottom. You can move the paddle left and right using the arrow keys. The game loop is implemented using `requestAnimationFrame`, which continuously redraws the game elements on the canvas.
To add actual blocks to break or additional game mechanics, you can extend this code further.