Sure! Here's an example of a simple Mario game implemented as a single HTML file using JavaScript:
In this example, I've created a basic Mario game where you can control Mario's movement using the left and right arrow keys. The game canvas is displayed, and Mario is drawn as a simple rectangular image. The `draw` function is responsible for redrawing the canvas every frame, and `moveMario` function handles the key events to move Mario left or right.
Please note that this is a very basic example and doesn't include any interactive elements, enemies, or levels. It's just a starting point for you to build upon and further enhance the game. You can replace the `emozi_all/mario.png` with an actual image of Mario to make it visually appealing.