I honestly don't get the difference. Isn't it just the same kind of game?
Oh, the one I played was actually Ms. Pac-Man. I didn't realize there were differences, but there are.
The game has four mazes that appear in different color schemes and alternate after each of the game's intermissions are seen. The pink maze appears in levels one and two; the light blue maze appears in levels three, four, and five; the brown maze appears in levels six to nine; and the dark blue maze appears in levels 10 to 14. After level 14, the maze configurations alternate every fourth level.
Three of the four mazes (the first, second, and fourth ones) have two sets of warp tunnels, as opposed to only one in the original maze.
The walls have a solid color rather than an outline, which makes it easier for a novice player to see where the paths around the mazes are.
The monsters' behavioral patterns are different, and include semi-random movement, which prevents the use of patterns to clear each round. Blinky (red) and Pinky (pink) move randomly in the first several seconds of each level, until the first reversal. Inky (cyan) and Sue (orange) still use the same movement patterns from the previous game to their respective corners, again until the first reversal.
Instead of appearing in the center of the maze, the fruits bounce randomly around the maze, entering and (if not eaten) leaving through the warp tunnels. Once all fruit has been encountered, they appear in random sequence for the rest of the game, starting on the eighth round; a 5000-point banana can be followed by a 100-point pair of cherries.