Pardon me for butting in, but I can certainly state that no, it's not required. I've never even touched the original and I didn't encounter any confusions back in the day when playing through Pac-Man World 2.
Granted, Mr. Mario's opinion is still very much warranted as he is the local Pac-Man enthusiast.
Granted, Mr. Mario's opinion is still very much warranted as he is the local Pac-Man enthusiast.