Sure! Here's an example of a very simple game about a white cat in a Super Mario world implemented as a single HTML file using JavaScript:
In this example, the game starts when the space bar is pressed, and you control the white cat using the up and down arrow keys. The goal is to avoid colliding with the obstacles (represented by the obstacle pictogram) and stay within the game boundaries.
Note: You will need to replace the `emozi_all/cat.png` and `emozi_chicken.png` file paths with the actual image paths of your cat pictogram and obstacle pictogram, respectively.