Sure! Here's an example of a simple snake game implemented as a single HTML file using JavaScript:
In the above code, you can control the snake's movement using the arrow keys. The snake starts at the top-left corner of the game container and can move within the boundaries. The turtwig is randomly positioned within the game container. When the snake collides with the turtwig, it becomes weirder by changing its color to magenta.
Please note that this is a simple implementation and may require further enhancements to make it a fully functional and enjoyable game.