No, he didn't.
Mr. Game & Watch is literally a creation solely for Melee. Like how Yoshi in Smash represents all of the Yoshis that assist Baby Mario in the Yoshi franchise, Mr. Game & Watch represents all of the dozens of nameless characters within the Game & Watch games. But none of them
are Mr. Game & Watch. He didn't make an appearance in the franchise until 2004 with Game & Watch Gallery 4, as the ambassador of the classic versions of the games (while Mario is the ambassador of the modern versions).
Giga Bowser debuted in
Melee, not Brawl. This is before Final Smashes were implemented. Giga Bowser is listed as a "Smash Bros." character, not a "Mario" character.
So Bowser transforming into a
non-canon Smash original demonic version of him from the previous installment of the series speaks for itself.
But it wasn't a separate being. Smash 64 is where the Metal Mario as a separate being from Mario
came from, and funnily enough, the DS remake of 64 retconned Metal Mario's existence as a transformation of Mario by making
Wario the only one who turns metal.
Pretty sure this:
is more than just a game of "name 5 differences" of this:
But shouldn't the point that Sakurai was intent of keeping the Sheik transformation
despite the TP Zelda not having one through method of redesign to match Zelda's new design prove my point?
That doesn't mean anything. Dr. Mario is a different franchise and continuity altogether.
Or should the fact that Wario debuted in a game called "Super
Mario Land 2: The 6 Golden Coins", the first game in the "Wario Land" franchise being "Wario Land: Super
Mario Land 3" and appearing in more games with "Mario" in the title than he does in games with "Wario" in the title make Wario have to be labeled as a Mario character, regardless of anything else?
Neither did Ice Climbers. They aren't really "modernized" when you stop and realize that they are essentially their sprite designs with very miniscule changes outside of graphic detail that every character in Smash goes through.
As for Pit, how does
this:
become
this:
And not be seen as considerably different?
We're not talking "updated from their sprite" like Ice Climbers, we're talking a full-blown
redesign to be more modernized and evolved like characters from his era that are still going strong such as Link and Samus.
Being a greedy jerk =/= being an antagonist.
And at the same time, an anti-hero is NOT a villain. You should research what an anti-hero is.
He isn't taking over castles like in 6 Golden Coins, he isn't blinding heroic people so that they stumble to their deaths like in Mario & Wario, he isn't attempting to take over the land like in Wario's Woods, etc.
Sure he goes on treasure hunts, but those don't make him evil. Just greedy. Really,
really greedy.
In fact, the only post-Wario Land game where Wario does anything remotely "evil" is take over a TV show to get treasure (who's main character just so happens to be a treasure hunting thief like Wario). Everything else, it's either he agrees to help out and do good if the pay is worth it, someone does something that warrants a Wario beatdown, he happens to be in the right place at the right time to stop an evil while on a hunt, or he's just being a jerk (which only applies to the first WarioWare; every other WarioWare, the issue of being a bad corporate boss is rarely brought up).
After all of that,
hunting down other Smashers just to turn them into his collection of trophies is rather dark.
Especially when it goes so out of the character that Wario has established over the years.
No, it was keeping associated characters matching each other.
Link was revamped to Twilight Princess design, so Zelda and Ganondorf were revamped accordingly. Sheik had no design to "match" into,
so one was made for her.
Toon Link, despite being from a different artstyle established in Wind Waker, was given textures to fit the TP style.
As for other examples, not a single character is completely true to their designs.
Some, even have their own Smash-exclusive designs.
I was always making a case for the latter.
He
can be grouped with Wario if he's redesigned to fit Wario's style.
Will it happen? Who knows. But having Wario and Waluigi match each other and grouped makes a lot more sense than Waluigi to be lumped with Mario and Luigi.