Sure! Here is an example of a simple PAC-Man game implemented in a single HTML file using JavaScript and enclosed in script tags:
In this implementation, the game area is a black square and the yellow div represents PAC-Man. You can control PAC-Man's movement using the arrow keys on your smartphone. PAC-Man can move up, down, left, and right within the boundaries of the game area (400x400 pixels).
Please note that this is a basic implementation and does not include features such as enemies, levels, or scoring. It can serve as a starting point for a more complete PAC-Man game.