Sure! Here's an example of a simple Super Mario Bros Kart game implemented as a single HTML file using JavaScript:
To play the game, you can save the above code as an HTML file (e.g., `super_mario_bros_kart.html`), and then open it in a web browser (preferably on a smartphone for a better experience). The game allows you to control Mario's kart using the left and right arrow keys. The player character is represented by a Mario Kart symbol in this example.
Please note that this is a basic implementation to demonstrate the concept, and there's a lot more that can be added to make it a complete game, including additional game elements, levels, animations, and more.