Okay, I see there's been a whole big long conversation about Ganondorf and Falcon that I've had too many times that I'm not going to jump into (I'll just reiterate the potential of Demise, though personally I don't want Ganondorf to fight massively different that he currently does). Instead I'm going to sacrifice an hour, maybe more, of my life to sum up this entire thread with every character in the game and what major aspects they're missing. If something is in just one game, like Donkey Kong's Coconut gun or Mario's Cappy, then I'm not going to really count is as classic. People might want it, but it's not actually a defined aspect of the character if it's only appeared as gimmick in one game (of course if the character themself has only appeared in one or two games then it's a different story). My knowledge of Nintendo series is pretty dang good by average standards, but also not perfect, so I'm sure I'll miss a lot. Anyway, here we go.
The most obvious thing that seems to be missing here is the Ground Pound. There are quite a few power ups in general, and sure, many that have appeared in multiple games, but as far things go that Mario can do, damaging enemies by jumping on them is his most fundamental and it's missing. This could, and I think, absoluty should be implemented by dealing damage by footstooling as a kind of inverse of Piranha Plant, but even if a mechanic like that was there, Mario can do a ground pound in pretty much every 3D appearance. That doesn't mean a Ground Pound necessarily has to be put in Mario's moveset, but it does strike me as one of the things he can most commonly do that is missing.
He's been discussed at length already, barrel throwing is something he's done since the arcade days and is continually reaffirmed as a thing in his own games. Shooting out of a barrel is also something very common in his own games and could definitely replace his current lack luster recovery. Animal companions are also a thing, but would change him quite a lot if implemented into his moveset.
Link's also got a lot of discussion recently on the thread, but it's been about specific games. If you take all of his appearances together, the main thing that seems to be missing is magic. Link has used magic rods since the first game and, while not as common as his three specials already, magic rods of some form have reappeared frequently in the Zelda series. Again though, this isn't necessarily something he needs to have, but it's definitely something he can do. Some people want Masks for Young Link, but that's really only been a thing in one title. Still not impossible though if there's a mission to keep all three and differentiate them.
Definitely Ice Beams. Wave and Plasma Beams you could claim are there with electric and fire attacks, but freezing enemies is one of the most important things about Samus that she does in almost every game yet is completely absent in Smash. Power Bombs, Space Jump and Spider Ball are also very common abilities that are absent in Smash, though it would be questionable how the Spider Ball in particular could work effectively. Dark Samus is missing almost everything and could easily be decloned completely.
Transformations...yeah, it's kind of weird to think about, but in a lot of Yoshi's own games he transforms into various vehicles. This has been entirely absent from Smash...and probably for good reason. What people here have mostly talked about is less what is missing from Yoshi and more mechanically how the things that are there should work in terms of eating, creating and throwing eggs. Flying and spitting fire is also something he can frequently do that was there in his old Final Smash but now doesn't have a place. The fire might not be necessary, but the winged form could definitely be used for a proper recovery.
A whole bunch of powers. Kirby really has a lot of abilities and many of them could easily replace stuff he does already. Too much to list. But what he does have already isn't necessarily unrepresentative. My personal mention would go to the Beam ability as one of his oldest and most basic attacks. The sword is also something people seem to want a lot beyond his final smash.
I'm not too familiar with the Star Fox series, have only played Lylat wars, where, funnily enough, the characters can fight outside of their vehicles using rocket launchers, but Assault or Command seems to be the obvious place to draw from for grounded combat in Star Fox. But overall Star Fox's most generally accepted gameplay is very different to Smash and, if you squint hard enough, is kind of present in Smash.
I would say Iron Tail is a pretty well associated attack from Pikachu that could certainly replace Skull Bash. But overall, speed+electicity is what Pikachu is all about and that's what is there. Pikachu does wear a lot of different costumes that could be more reflected in alts though. Pichu is pretty much the same. Maybe some "cute" attacks from Pokemon that lower enemies stats if you really want.
You could say some of the same stuff about Mari's ground pound, but overall pretty well represented.
:ultNess: So, yeah, you might be surprised to hear this if you haven't played Earthbound, but Ness has his own special signature move that is just completely absent. It's called PK Rockin. You could say some of his generic psychic attacks are it, and I've heard someone suggest PK Thunder on himself is it, but nothing in Smash has been identified as PK Rockin and it's actually super weird. Other than that, Nes uses two of the three weapons he's able to use in Earthbound, the baseball bat and the yo-yo. He's missing the slingshot. Though yo-yo and slingshots are generic weapons all the party members can use in Earthbound.
So like Star Fox, his gameplay is completely different. It would be possible to maybe squeeze out some more stuff based on boosts and mid race repair fields and stuff, but it would all probably be a bit contrived. He also has that gun he never used in Smash, though I don't think he ever uses it anywhere else either.
Obvious fairy moves are missing. Could be implemented pretty easily with a few more sparkles.
There's certainly a lot to draw from in Super Princess Peach, but that's only one game that's quite old now. On the other hand, it's the only actual "Peach game" you could readily identify. So her vibes and stuff from that do still stand out. Daisy is in a similar boat, though people would like to see her take more from her sports games.
People have pointed to some specific punches and stuff that could definitely work. But overall what Bowser does is pound around and breath fire, which is there in Smash. Though if his Fire Breath could work in Fire Shot from SSB4's customs then that would be nice.
If you really want something more canonical for them, the falcon they grab onto at the end of every stage would definitely work as a recovery. And I'm actually a little surprised they never went that route. Though I think it is already represented in their stage entrance.
The harp. It isn't even there as a taunt! Sheik did two things in Ocarina of Time. Play the harp and vanish. The latter is there but the former has only ever appeared in Melee's intro. In addition, there's now a whole host of Sheikah weapons and abilities introduced in Breath of the Wild that could potentially be used, even if we've never seen Sheik, specifically, use them.
Yep, light arrows. Talked about extensively, moving on.
He literally has only ever thrown pills, and that's there, so he's good. Though if you really want to shake up Smash a bit, he could be given a healing move or two. He is a doctor after all.
The Shield of Seals. It's kind of a big thing about Marth. It's the titular Fire Emblem game. Yeah, Marth used a Shield. In another world maybe he was a Link clone with different specials. How to implement it though? I think maybe turning his counter into something more resembling Sephiroth's scintilla.
In addition to swords, both could use lances in their own game. Lucina has also become some what connected to bows in spin off materials. She also used Aether, like Chrom. They also have a distinctive jump and spinning attack both use in gameplay and is specifically pointed out in a cutscene.
Discussed at length. Missing a long range projectile and a trident.
He doesn't have a move expressly identified as "psychic", but in general he does use all his psychic powers. He also used barrier quite extensively in his movies and that's something that could be worked in if need be.
Long range attacks. It's funny, and possibly a result of him debuting in Smash before his own game, but Roy can attack at long range unlike most sword users in his series, yet he's a close range fighter in Smash. I don't think the two ideas are impossible to unify in Smash, so long as his projectile discourages spamming and encourages rushing in. Something like PK Fire or Sacred Flame would probably work best.
It doesn't get much focus, but Mr Game and Watch is actually probably the most well represented character in smash. Almost every single frame of his comes from some Game and Watch game. There's still a lot that aren't used as it was a full console library, but overall he has nothing to complain about.
Discussed a bit, but I can't really remember what people have focused don most. What stands out to me is that he's missing a projectile which he sort of uses in Kirby along with a stall and drop down aerial.
There are a lot of new weapons in Kid Icarus Uprising that are not seeing use. Pit doesn't exactly need to use them, but Dark Pit absolutely could to be decloned. In addition, as I noted, Pit could use a hammer in his own game. He also had Centurions helping him, which was his old final smash but now is no longer present. I also think the Great Sacred Treasure could make for a better final smash, freeing up the regular sacred trasures for his specials again.
Ike is in the same boat as Roy, having a long range attack in his own game. Closest Smash got to that was Aether Wave in Smash 4, though Eruption does extend pretty far at full charge. Neither are Ike's sword beam though. He also uses axes and even has an associated axe he inherited from his father called Urvan. I think we're passed every Fire Emblem character needing counter now and his axe could work as a down special similar to Byleth's.
Like most pokemon, there's a lot of moves you could use, but overall the fundamentals are well represented.
I don't think he's been talked about much. He's pretty well represented. He did have a charge attack in DK64 that could be used as a Smash attack, but not exactly classic. He has also flown a lot with the whole Diddy Kong racing, but not really workable unless it's an entrance or something.
Like Ness, Lucas has his own special PK attack, PK Love, but unlike Ness, it is more obviously represented in his normal attacks. Aside from that, Lucas's main role in Mother 3 is actually as a healer and a shielder. He kind of has healing already with PSI Magnet, but a PSI Shield or Counter would not be remiss.
A long history, so a lot that could potentially be taken, but overall he's fast and that's Sonic's jam. The most obvious thing to me is the shield orbs he could get in his older games, but they might work better as an item for smash in general than a specific attack on Sonic.
Largely fine. WAll his most recurring traits are there in some form, from what I can see.
Rock Pikmin are a noticable absence.
No specific steel moves, I think. Maybe he could get metal claw?
Dynamite was a feature of one of his two original games that could potentially be implemented. Though R.O.B is less classic for anything from his actual games and more for just being R.O.B.
Is in the Kirby situation. A lot of classic stuff he does do, but overall largely well represented already. In fact, very well represented.
Seems well represented to me. I guess she could use the Luma Spin.
Reiterate what I've said about the other Pokemon. Still more you could do, but the fundamentals are there.
Surpisingly, anything from their own games. Wii Sports and Wii Play do exist. Would anyone object to a four Mii fighter, Mii Sportsmaster?
They aped a lot of Pit's moves to make her in Smash 4, but they, whether intentionally or not, did still end up taking a lot of what she does in her own boss fight anyway. What's noteworthy about Palutena is what she used to be able to do as a result of custom specials that she can't do anymore.
Their signature skill Ignis isn't present. Maybe should replace the final smash now that Chrom is playable. There's also has some spoilershy stuff with the villain that could be worked in, if only even as an alt. Also known to buff allies, which could potentially be worked in a team battle or as some kind of Monado arts.
Monado Buster! Pretty cool, powerful attack he's missing from his own games. Monado Arts are also cool and somewhat resembles Xenoblade gameplay, but not actually how the Monado itself works in Xenoblade.
Not something he's done, I think, but he's clearly also based on the Super Mario World end boss where one of the attacks is to drop a large marble looking ball called a Big Steely. Maybe he should drop a Little Steely?
It's not a complicated game. Everything is pretty much there.
Magic. It's a big thing in Final Fantasy and Cloud does use it in his own game. In addition, he has two of his seven limit breaks absent, Braver and Meteor Rain. Not sure how you could work them in outside of Custom Specials though.
Corrin also uses magic and healing staves in Fates. Though I can understand why that was downplayed compared to dragon powers.
Bayonetta uses a lot of other weapons, but none of them are exactly iconic or important compared to her guns.
Also uses quite a few other wepaons, but what there already kind of works. Similar to the pokemon, a lot you could add, but don't really need to.
Bouncing tail is the obvious one. Other than that the fundamentals are there.
Knives are one of the classic Catlevannia items missing frmo the specialsl line up. Simon also used a shield via Dracula's Rib in his second game which wouldn't be the worst special. The most iconic thing however, that they're missing, is Item Crashes. Using some of their ammo to do a more powerful attack. Well I guess it's there for their final Smahs, but in manifests in a lot of other items in Castlevannia too.
He can drop cannon balls from the sky, which could potentially be implemented like Pikachu's Thunder for a special, but overall I think he's pretty solid.
Nothing of note to say. Haven't played more modern Pokemon games.
Fire balls. A staple of piranha plants that is missing, except maybe I think on a back aerial.
I've only played Dragon Quest VIII, so there's nothing obvious that jumps out to me. I'm sure there's a lot you could do, but he seems pretty well rounded as is.
I've only played the first Banjo Kazooie game, which they're very well represented from. Though I think the second game has some more elaborate abilities that could be used.
The eagerness to use all the weapons has overlooked the things Byleth actually has proficiencies for in their own game. Namely Brawling and White Magic. An Enlightened One Alt would also be very much appreciated. It's super minor in Three Houses, but Byleth's personal class also takes no damage from terrain hazards, which could be a nice reference in Smash if they took reduced damage from certain stage hazzards. Byleth can also ocassionally heal a tiny portion of damage dealt in Three Houses, which would be a nice touch in Smash as a random low% chance on some attacks.
Two of his personal attacks from his own boss battle strike me as missing. Pale Horse, a move that inflicts status effects (including mini, so definitely workable in Smash, albeit probably too good if not used right) and Heartless Angel, a move that reduces enemies HP to 1. Pale Horse kind of vanished from his repertoire after Final Fantasy VII, but Heartless Angel stuck around in other appearances. Of course, it's kind of questionable how it would even work in Smash and overall, Sephiroth is represented very well.
They don't even do the fighting in their own games, but from what abilities they do possess, yeah, it's well represented.
His strongest attacks Ragnarok and Ars Arcanum, both a rushing combo of attacks, are missing. Probably more workable, however, is a common weak ability he has called Strike Raid, where he throws his Keyblade like a boomerang. He can also glide in his own games, so put him down as a candidate for that if it's ever brought back as a mechanic.
Really don't know much about these series.
Phew. That took forever. I'm sure there's a lot I missed, but I focused mainly on the really identifiable features.