MS Pac-Man is an arcade game, a variant of the original Pac-Man. This version's '(version)' notation suggests multiple releases might exist with variations. The gameplay would fundamentally involve navigating a maze, consuming dots and power pellets while avoiding ghosts.  Further detail about the specific version in question will clarify its origin, developers, and any specific alterations or additions to the standard Pac-Man formula.

MS Pacman (version)

Mr. Lo!