What I'm saying is, just because things
don't act realistically doesn't mean you can assume that
everything works differently. Marvel's Earth clearly isn't Earth, and clearly has magic and all that. But if Thor cracks a planet I'm going to assume Thor could crack a planet just as easily in "our world."
It clearly isn't, as otherwise it wouldn't have volcanoes. As for gravity, we know it has enough to have a moon and several asteroid belts orbiting it. And in the games it's even shown as comparable in size to (what I assume is, I haven't played the game)
Earth-like worlds.
The difference between Kirby and Marvel is the latter bills itself as science fiction to an extent. So even though Thor is fantastical, he still exists in a universe that is at least trying to bill itself as realistic to some extent.
Kirby literally lives in a place called "Dreamland", and if I had to categorise it, is basically a fantasy world as opposed to sci-fi, meaning any logic to anything in this universe is PURELY defined by the people who create it, and not really grounded in real world scientific laws, even remotely (something sci-fi stuff usually at least tries to base itself off, hence the term). However, since Kirby is a Nintendo platformer, very little context or defined rules are outlined anyway because Nintendo has a very mechanical approach to most of their games. There's your queue to not liken it to reality.
Hell, if anything, most of Kirby's planets probably couldn't exist under real world physical laws if you assume they have Earth-like gravity. They wouldn't be big enough to sustain it, and would simply implode in seconds.
If the cuteness or lack of realism of a game invalidated anything that happened in it, half the things in death battles would be disqualified by default.
I'm not going to make any assumptions about physics, but just off of the fact that Kirby can suck up an object and spit it back out at high speed I can see him doing some level of damage to a normal person if they didn't know how to specifically handle him. That's not even getting into if his copy powers actually do work on something, in which case how big of a deal Kirby is depends on what he finds. It's not like he couldn't still stuff. . .the vast majority of venomous animals out there into his mouth, and have fun dealing with him if he manages to copy that.
Meta Knight has a really, really freaking sharp and fast pointy object the size of pointy objects used to kill people IRL and enough lift and speed to make it up to the height of someone's vitals while it would still matter. That alone is enough to make me think he could at least do some damage.
I mean yeah in the context of our world on a military level they'd probably not last so long, but an unarmed person or someone armed with a normal weapon they're not trained that well with I don't see winning a fight tiny borbs or not. Lasting longer than fighting an equivalent larger character sure, but a normal person is going to end crumpled on the floor at best unless they really know what they're doing.
It's like when people laugh at Pikachu and say that can kick it to death. Sure, you could kill it pretty easy with a rocket launcher, but electric eels can kill people pretty easily and Pikachu is conducting that through air, which takes even more energy. There is no "kick," there is "you got yourself killed because you're not from a death world where humans specifically evolved from Pokemon and would likely have a resistance, genius."
Kirby's overestimated, but he's not overestimated SO much that he would be useless because it's not like he doesn't rip up much stronger and faster things the size of humans already.
Since when does Kirby spit things out at "high speeds"?
I've actually always found Kirby's star projectiles to be frustratingly slow, at times. A human having something of that size thrown at them at that speed would barely even be felt.
And that's besides my initial point. When I was noting how small Kirby is, I was more thinking in comparison to other video game characters. For example, I don't see Kirby standing up to Mario at his actual size.
At no point did I say Kirby was useless. I said he is super powerful in the context of his universe, and others like it. But not in every universe, and there are plenty of characters who probably wouldn't even engage in a fight with him because he's so adorable and helpless against them anyway.
