I would rather be rating more specific historical character choices. A historical surprise newcomer getting in the game is going to happen IMO, the specific choices is where rating will be more interesting.
I'm most interested in seeing whether the boards recognize a historical charcter as something to include. I know my own position, but I want to see other users' opinions.
Pac man summons his mortal enemies, the ghosts, to use as props. How much more forced of a moveset can you get than that? What if Mario threw out Bowser as an attack? Aside from that, the Neutral Special is taken from games other than Pac Man's and just makes him a generic representative of his company. The Down Special hydrant is a random cliffnote prop in a Pac Man game that is way more obscure than what is being proposed for Tom Nook.
Now, hold on. To call Pac-man's moveset forced is extremely disingenuous. Allow me to quote myself.
As a Pac-Man main, I can tell you with certainty that he was designed to be a character that plays exactly like his games. It's not a stretch.
He uses the layout of the arena to manipulate his opponents while simultaneously staying as far away from them as possible. That's his gameplan in Smash, and it's also his gameplan in his arcade game. He uses the layout of the maze to manipulate the AI of the ghosts so he can stay safe while eating the pellets.
Even his fruit charge reflects this, as you have to have enough time to go for the charge to get any given fruit, which becomes harder the higher you charge. This is exactly like how you need to carefully plan your way into a situation where you can grab the fruit for extra points without dying in Pac-Man, which is also harder for higher leveled fruit.
Further, Pac-Man is no stranger to manipulating Ghosts - not only can it be argued that his first game revolves around AI manipulation, but he's also shown to be straight up friends with them for certain games (see: Pac-Man World 3, Ghostly Adventures)
The hydrant, while an odd choice at first glance, was chosen specifically to allow Pac-Man to be a character that affects the decisions of his opponents. Being able to attack it leads to aggressive players letting their guard down and attacking it instead of you. Passive players who let it remain out are either forced to change their approach due to water or because of it being launched.
It's not an exaggeration to say that Pac-Man's hydrant is what brings his kit together. That's why he has it.
And please note that the only things Pac-Man uses that are not from his own games are the trampoline (which he borrows from Mappy, a character he has crossed paths wth before), hos grab, and taunts. Everything else is taken from various games, including subtle references like his jab, up-air, and down-tilt.
Pac-Man is extremely true to his own games, and he isn't a good example for what you're trying to articulate.