Sure! Here's an example of a simple game where you play as a mouse collecting cheese while being chased by a cat. The game will run in a single HTML file and contain JavaScript code enclosed within script tags.
Mouse & Cheese Game
This game uses the HTML canvas element to draw the game objects (mouse, cheese, and cat) and allows you to control the mouse's movement using your cursor or touchscreen. The cat will try to chase you, and if it catches you, the game ends. The objective is to collect as much cheese as possible while avoiding the cat.
Please note that this is just a basic implementation to demonstrate the game concept. You can further customize and enhance the game as per your requirements.