Sure! Here's an example of a simple Snake vs Pacman game implemented as a single HTML file using JavaScript:
To play the game, you can open the HTML file in a web browser on your smartphone. The game features a snake represented by a green square and an apple represented by a red square. Use the arrow keys or the 'W', 'A', 'S', 'D' keys to control the snake. The objective is to eat the apple without colliding with the edges of the screen or the snake's own body.