According to the search results, Ms. Pac-Man has been replaced by a new character called Pac-Mom in recent re-releases of Pac-Land and other Pac-Man games. The reason for this change is likely due to a legal dispute over the rights to the character. Ms. Pac-Man was not developed by Namco itself back in 1982, but instead started life as a game called Crazy Otto and was created by a company called General Computer Corporation (GCC) as a conversion kit for the original Pac-Man. Since then, Bandai Namco has been in legal dispute with a company called AtGames over the rights to the character. The case was ultimately dismissed with prejudice on October 27, 2020, following a request by Bandai Namco, but the current status of the Ms. Pac-Man royalties is undisclosed.