Certainly! Here's an example of a game implemented as a single HTML file, using JavaScript and enclosed in script tags. This game simulates a computer virus as described, with pop-up messages and the need to clean files multiple times. To keep it simple, we won't have actual file cleaning, but simulate it by clicking a button.
Please note that the game only provides a basic structure and behavior. You can modify and enhance it as per your requirements and preferences.
Virus Game
To play the game, you can copy the above code into a new HTML file and open it in a browser (preferably on a smartphone for a more realistic experience). The game will start by showing a popup asking to "Scan for virus?". Clicking "Yes" triggers a cleaning attempt, and clicking "No" proceeds without cleaning. If the virus is detected, it will be "cleaned" after sufficient repair attempts. If the virus causes damage, or if the player fails to repair the computer within three attempts, the game is over.