I think Waluigi's smash attack should just be an honest to goodness punch to the mouth, like Mario and Luigi's in SSB.
Also, Waluigi would probably end up as the highest tier Mario character simply due to his godly range (worked for Marth). I mean, look at those arms!
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Just for the sake of asking xianfeng, when has Diddy kong had such a huge following? Minus Diddy Kong racing, he has played a filler and secondary role for DK (even in DKC2, Dixie became more popular and more people tended to use her, which was why he was replaced by kiddie kong in DKC3). Since his return, he has played just as important a role (if not less) then Waluigi in the Mario Universe. You, as well as many of the other Waluigi haters here, seem to like resaying the same 3 or 4 things again and again and again:
1. Waluigi is unoriginal
What makes Falco so creative? He's a bird anthro that flies a spaceship like the other 3 starfox pilots. He's the stereotypical "Cool guy with mysterious past" character you see in almost EVERY anime that involves combat of any sort. Or Captain Falcon, as much as I love F-Zero, he's very average, a futuristic, Helmeted bounty hunter(who does THAT sound like, hmmm....I wonder..?) that races around with 40 equally unoriginal (though likeable) characters. Waluigi may be uninspired and cliche', but he's FAR from alone in the Smash Bros. cast.
2. Waluigi has only been in Party games / Waluigi started out in MARIO TENNIS / Waluigi is a "Filler" character
I dislike repeating myself, but every character in smash bros. represents something about Nintendo and it's amazing history. Waluigi could easily represent the five or six party games that nintendo releases each and every year (a well liked and profitable move, an opinion I share with many), as well as the entire genre itself. Also, in my honest opinion, waluigi is a clever nod to wrecking crew, a classic, forgotten pre-Super Mario Bros. Mario game, a game that he could easily represent, in moves and in spirit.
3. Waluigi is boring
No, YOU think he his. How boring a character is is nothing but opinion, and to go around acting like it's fact with no regard for other people's opinions makes you an *******, and just because YOU hate a character doesn't mean others do, so don't think of your opinion as fact.
4. Waluigi is a waste of the developer's time
Again, this is opinion. It clearly wasn't a waste of time for the developers to make waluigi, so why would it be a waste to make a moveset for him.
My point is, if you dislike Waluigi, you are entitled to your opinion, but don't just say the same reasons again and again. Some original output from the nay-sayers could help your cause out a lot.
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I don't think many people realize a cold, hard, Nintendo truth that has been masked for ever so long; Mario himself is as bad as Waluigi. Think about it: in all of Mario's games, the stories have been bland, and Mario has been forced into situations, revealing absolutely nothing about his character. He is the stereotypical hero type, with nothing but his looks original. The only reason he is so widely supported is because he's starred in so many games, which makes no sense.
Waluigi may be a filler character with not much personality, but it is slowly being established through the sports games. For example, in Mario Power Tennis, it is revealed that he is mischievous and an annoyance for Mario and Luigi, rather than a full-fledged villain like Bowser. That alone, combined with his stature, range, affinity for Bob-Ombs and special moves in his games, is enough to make him equal to Mario, who is the quintessential Brawl character.
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The filler comment I won't touch because I'm still surprised that it's being used as an arguement. In terms of unoriginal, so are luigi and wario. They both come from the same character mold, which is mario (luigi even has the same career). Yes, yes, yes. I know what you want to say, "they have their own games" or "they aren't in just party games." Still doesn't change the fact that their originality is just as low. Who cares about originality anyway. Within this entire forum people want to see generic turtle enemies, pinnochio's cousin, the marshmallow man's little brother, black mages, a potential fox clone, and many other characters that are not original.
Nobody likes fillers? People love fillers. Walk through time with me a see some of the popular fillers. Luigi, who made player 2 look different, was popular. Falco, who was there to let it be known that fox wasn't the best pilot, was popular. Daisy, peaches clone, is growing popular. Wolf O'donnel, looks alot like fox doesn't he, is growing popular. Now lets look at the smash bros universe.
Correct me if I'm wrong (and yes, I'm being technical) but all the last minute additions to melee were just fillers. Most of the clones were put in just to add more characters at the last minute. Doc, Falco, Y.link, and Pichu all have a fanbase in melee. Even though, as of right now, they were just fillers.
Also, even if it isn't waluigi, the mario franchise will add more characters to brawl. The are the largest and will be represented as such. Especially since mario reps. nintendo
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...I don't think the argument that "Waluigi has nevar appeared in his own game lol" is a very strong one. Waluigi's had more appearances than Falco, more personality than Jigglypuff, and he's more recognizable than Marth (here OR in Japan, because Fire Emblem 1 is OLD).
Irregardless, Waluigi is no longer a "sidekick." He only really appeared directly alongside Wario in Double Dash and Tennis 64 anyways. In Toadstool Tour, Power Tennis, Baseball, Strikers, all the newer Party games, Mario DDR, blah blah blah... he works solo. Yes, he was created just as a doubles partner for Wario, but what the hell was Luigi? Or Yoshi? Or
Wario? Luigi started out as just Player 2, and Yoshi was only meant to be Mario's ride. Wario started out as a BS rival for Mario when the development team was too lazy to use Bowser for Mario Land 2. But all these characters... they got popular enough over time, and became stars themselves. Waluigi's pretty much at that point right now as well. Go surf the web: Waluigi is a very, very popular Nintendo character. I think his inclusion would please a lot of people who are maybe not huge Nintendo fanboys, but looking for a fun-*** experience.
And I know it would be upsetting if they opted for him over, say, Little Mac, but hey. At least it would be a fun character

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We're still confusing personality I see. Wario started as a money hungry anti-hero and even after numerous games and years he still remains a money hungry anti-hero. That isn't really personality growth. I will agree that Luigi become more than he was though.
Overall, outside of personal dislike, I can't see where all the negativity is coming from towards this character. Every anti-waluigi statement that has been made about him can be said about one of the beloved members of the melee roster.
It was said above that he has been around for six years and has the same personality yet does not have his own game. That can be said about falco. He's been around longer, has appeared in, less games, doesn't have his own title, and is only pickable in assault( I heard. I never played it). Yet we are now not only ranking him in the elite column for melee but most of us are hoping he gets a new moveset so he can be more original. Personality shouldn't even be brought up because most of melee's cast have very little.
"He has only appeared in part games". Nintendo choose to but him in multiplayer games, so what? How does that mean he will never get his own game (as most of you have related together)? Why does that mean he should be excluded from another multiplayer game.
"He'd only be a clone". This arguement has already been dismissed by the developer. (unofficially) They have proved that the can make any character original and it's evident with fox and C.F.
"He's just a filler". This argument has been used more than any other even though it has been dismissed many pages ago. Yet, I know it will return again. Like a classic horror movie, when you think you're safe it jumps through the window and beats you to death with a sledgehammer.
In terms of other unique characters. It's all opinion. I personally think chrono should be the first new addition to brawl. It's my opinion. Some think it should be megaman, or sonic, or bomberman, geno, wolf o'donnel, diddy kong, etc, etc. The smash community isn't going to agree on every character addition. If any of the characters I named makes it to brawl, some people will be happy, some will be pissed. No character is going to get 100% support nor are you expected to like everyone, which is why I don't get why some of you are making it seem like waluigi would be the worst thing to happen to smash. Do the same thing you did with the melee character you didn't like, don't pick them and move on and focus on the ones you do like.
EDIT: The post above mine show an example of personal dislike. How would you know that he would be the most boring character in both games?????
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Sakurai might also be looking fan support in addition to game appearance and games starred. If that's the case then I still can't see why he wouldn't at least get the 14th spot in terms of new characters. Yes there are higher priority characters but there can't be more than 13.
Geno and Mallow don't really count above him because they would be third party.
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... Waluigi wasn't in a real game...
So?
I don't understand why this excludes him automatically. Hell, if ANY ONE had said "Solid snake is going to be in the new Melee!" before it came out, we'd have beat them with our mean words... such as YOU IS STUPIDZ!!~!~!123`!! It would seem Nintendo can and WILL throw in some unusual characters... Sakurai even said 'We're going to use some LESS POPULAR characters, not just the big names', on smash dojo.(he said something like, don't quote me, rofl)
Waluigi is a "stupid" filler character, thrown in to give Wario a buddy...
Doesn't that make him MORE likely? Mario has Wario... the game is almost certain to have luigi... and Waluigi is basically luigi's Wario... Soooooooo can't you sorta just take Waluigi's status as partner in crime to wario, and make it an INCLUSION factor, like because now that wario's in, and Mario's in... it's really weird to NOT have Waluigi too?
ohh well, just read this thread and saw those two things and was like... wahh? I'm probably not going to check this thread again, so don't bother asking me/telling me stuff.
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It's only obvious for Nintendo to include him, after all, I don't remember Luigi being extremely popular before the original SSB. I do believe Luigi hit it big on the Gamecube, Wii could be Waluigi's console to shine on.
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I have always loved Waluigi. What i have not apprieciated is his lack of appearances in the normal Mario/Wario continuities.
I predicted him from the first time I saw Wario. i mean come on Luigi fans, help me out when I say, how fair is it that Mario not only gets to save that hott princess from a Turtle dragon, and has a rival who looks like him? Waluigi and Daisy type characters were bound to happen for Luigi at some point(but jesus god do i hate Daisy).
Since his initial appearance, I've seen Waluigi team up with Wario to cause both Mario and Luigi trouble. When brawl comes I dont want to see Mario fighting Wario while Luigi is just standing to the side idley, waiting for yet another chance to jump out of his brothers shadow! And that is exactly Waluigi's significance, he brings much needed light onto the character of Luigi.
So, yeah. Once they confirm Luigi, and they will, I'm expecting ( and very much hoping for) the confirmation of Waluigi. It is time he breaks into the light.
On a side note I really really really hope the begin to put Waluigi in games with Wario. They really do compliment each other, even when the Mario Bros arent around. I mean just last night I play Super Mario Strikers and Mario Kart : Double Dash. those two just make me giggle.