Sure! Here's an example implementation of the game "Roblox Noob's Head Smasher" in a single HTML file using JavaScript:
Roblox Noob's Head Smasher
Click on the noob's head to smash it!
In the above code, it's assumed that there is an image file named "emozi_rabbit.png" in the same directory as the HTML file. You can replace it with your own image file or use any pictogram you prefer. Each click on the image reduces its size until it is completely smashed, triggering the game over message.
Note: This is a basic example and might not be visually appealing. You can enhance it further by adding audio, animations, or more complex gameplay mechanics based on your preferences.