It’s hard to say, since a lot of characters aren’t given a whole lot of personality or dialogue in the games anyway, but to an extent, yeah. Meta Knight is probably the most dramatic change from how both the canon and the fanon perceives him, but he’s still the badass honorable knight dude… just also really pretentious and full of himself. Oh yeah, and he’s also a big lovestruck womanizer.

Marx, despite not saying much in the games, is fairly different as well, his intentions in the manga are just as bad (or worse arguably) than his game counterpart, but he’s less a laughing giggling lunatic, and more like a bratty smug narcissist, who wants to prove himself to be the strongest warrior in the galaxy. He also makes his intentions very clear and upfront in the manga, proudly announcing them to Kirby, instead of plotting to manipulate or trick him.

Also, he has hands.

King Dedede is kind of hard to pin for me, he’s more similar to the games personality-wise than the anime for sure, but they quarrel and fight a lot more in the manga than they do in recent games in the series, so I guess it’s more similar to their relationship in older Kirby games.

Knuckle Joe is pretty different in the manga than he is in the anime, and of course, he’s hard to compare to his game counterpart, since he’s such a minor character with zero lines. He’s doesn’t have any dark brooding backstory like anime Knuckle Joe, he’s just a sporty kid that’s good friends with Kirby. He also wants a pet dog.

Magolor is pretty similar to the games as well, in that he hides his true world-conquering intentions under the guise of being a friendly, good person. The only difference is any time he actually does attempt to do anything evil, it goes horribly wrong so quickly nobody ever even finds out about it. Poor Magolor.

There’s also Queen Sectonia, who’s basically a cutesy nice lady who has a tendency to suddenly snap and turn extremely violent. Like that time she blew Popstar up trying to slice some cake. On that note, there’s also Taranza who’s a bit brattier and spoiled than he is in the games. He likes writing in his diary and eating donuts.

Kirby, on the other hand, is basically what you would expect his personality would be if he could talk: Happy-go-lucky, friendly, gluttonous as all hell, and blissfully unaware of the unintentional suffering he occasionally causes his friends. (played for laughs, of course.)