Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript, enclosed in script tags:
In this game, you play as Godzilla and the objective is to click on Godzilla as many times as possible within a 30-second time limit. Each time you click on Godzilla, your score increases, and Godzilla moves to a random position on the screen. After the time limit ends, a game over alert will display your final score.
Note: This is a simple example just to demonstrate the concept. You can expand and customize the game as per your requirements.