Since when was Jigglypuff one of the important 6. Even Pidgey and rattata are more important than Jigglypuff.
And yes Lucario is the most popular Poke'mon of the least liked generation of Poke'mon... Wow.
And why would they team up? Have you even watched Poke'mon The First (and best) Movie? Mewtwo and Mew get in a huge fight and are perfectly and evenly matched because Mew isn't the weakling you seem to think he is. Then at the end of the movie, Mewtwo and Mew take all the other clones and dissappear after Mewtwo explains how wrong his ideas were and all that bs about friendship that they stick in every ****ing episode of Poke'mon ever made.
So yes, making them a team would be viable.
And for future reference, not all characters get into Smash because they were popular and fan demanded... for some its the exact opposite. The Ice Climbers? Pit? Ringing any bells?
And if you think Mew is rarely seen as a Poke'mon, LOOK AT RAYQUAZA! Rayquaza does not get his own movie (that I know of) and only appears as an optional legendary of a single season. Yet he is added... AS A BOSS!
Do you know why these "rare sighting" poke'mon are well known. Because they are the kind that are so great that you are willing to go out of your way to get them, because they are that powerful and that much more satisfying to capture.
Another thing that you don't see is that Mew has something that a lot of "more deserving newer Poke'mon" don't. He has appeared in Poke'balls as the rarest one in every single SSB game. Heck, in Melee, they even give a 10,000 point bonus just for getting Mew from a Poke'ball. How many of these "more deserving newer Poke'mon" you talk about have that?
*sigh* Oh good lord. Where do I begin?
Pokemon is a series in which popularity rules supreme. Since there are 493 monsters, it's hard to pick 'important' characters. That's why you pick popular characters. What role did Pikachu have in Red/Green that made it so important, huh? It was the anime that gave Pikachu its popularity, was it not? And that made Yellow Version afterwards? Pikachu became the face of Pokemon because of the anime. And Jigglypuff, being the second most popular Pokemon in Japan at the time (and at the very least, still kept that title in an American 10th anniversary poll in 2006) earned her right to be in Smash because she was so popular. So yes, according to Smash, Jigglypuff is important because she's the second most popular Pokemon behind Pikachu.
Pokemon The First Movie? LOL. Yes, I saw that piece of crap. Mewtwo and Mew disappeared, yes. But then Mew never showed up in the next 'movie' Mewtwo Returns. Mew was gone, and it was just Mewtwo and his clones. So...yeah. They aren't even together anymore.
And I think you really need to check up on your Smash history. Pit definitely got into Smash BECAUSE he was so requested. Ice Climbers, R.O.B, Game & Watch and Roy are the only true characters who you could say didn't make it in because of popularity. But when it comes to Pokemon, popularity is a bigger factor than anything because there are over 400 monsters to choose from.
Sigh. When I said Mew was rarely seen as a Pokemon, I meant that in the Smash sense. It's a rare sighting to see a Mew. That has been its role from the first game, and to make it playable now would be lame, especially since the first gen has way too many reps already.
Rayquaza was in the seventh Pokemon movie by the way. You neglect to mention that Rayquaza was a version mascot, in the form of Emerald. And that's good for Rayquaza, he was picked to be a boss. Yayyyy. *clap*
And like I said, yay for Mew. It's been the rare sighting Pokemon in every Smash game, and it should stay that way. Mew, Celebi, Jirachi can't even be caught regularly. You only get them at Nintendo events or in special Nintendo discs. So...they fit their role as rare Pokemon, as not everyone has them.
I don't know how many times I'll have to repeat myself. I don't know what you're all thinking, either. The fourth generation is the least liked? Pokemon Pearl and Diamond's sales disagree with you. The ratings for the Pokemon Diamond and Pearl anime disagree with you. Just because you grew up with the first generation doesn't mean it needs to be overrepped, and it doesn't mean that other, more recent generations shouldn't get a chance at representation. Pokemon is still popular today, and the newest generation that children are familiar with should be represented. That's all.
Actually, Rayqauaza was the main antagonist of the Deoxys pokemon movie, and had his own game (kinda) in the form of pokemon emerald.
If you people really want some likely pokemon, I'd look less into the pokemon that "deserve" to be a character and more into the pokemon that stand on two legs and can perform similar to a human. Think along the lines of maybe Deoxys or Meowth (please god, no).
Ivysaur is shaking its vines at you.