Sure! Here's an example of a simple game implemented as a single HTML file. The game involves you, as a mouse, navigating through a maze while being chased by a car. Your objective is to lose the car and find the exit of the maze to win the game.
Mouse Maze Game
To play the game, you can copy the above code into a blank HTML file and open it in a web browser on your smartphone. You'll see a maze, represented by a bordered div element, with a gray dot representing the mouse, a red rectangle representing the car, and a green dot representing the exit. Use the arrow keys or swipe gestures to move the mouse (gray dot) and try to avoid being caught by the car (red rectangle). If the mouse reaches the exit (green dot), you win the game.
Please note that this is a basic example, and it can be further enhanced with additional features, levels, and graphics.