Of course you could make a moveset for him, it just doesn't write itself like tons of Brawl candidates.
Waluigi's partaking in any game brings it down, no matter how minute his role. It's what he does.Oh yeah, and on the point that he'd drag the Wario Series down, I entirely Disagree,
What exactly are you basing this on? Waluigi has never really been developed on and so we don't really have any clue about his personality other than his "I fail as a villain" villainary that most if not all Mario villains have. Something along the lines of "Look how evil I am, I'm going to interrupt their tennis tournament bwahahaha oh wait no I failed. Pity." or "The tennis tournament failed so lets steal some magic keys or something and they have to dance to get them back!" (if anyone has actually played Mario DDR and I got the plot wrong, please feel free to point it out, although I don't really care too much)Waluigi seems to be a more of a sneaky kind of character compared to Wario, also, Waluigi doesn't seem to care about Greed, unlike Wario, he seems to care more about destruction and whatnot
Waluigi is being linked to Wrecking Crew because Luigi starred as a playable character in it, but in a purple outfit. Hence now we have what is essentially a purple Luigi again, Nintendo are obviously capatalising on the link. Also according to Wikipedia the badguy is presumed to be who Wario was based off of, so it seems fitting. Waluigi has no connection though.hence why he could be actually connected to Wrecking Crew through the hints given
What you mean like Waluigi could basically just rip off Paper Mario in a Wario Bros. platformer? Fantastic. Plus the whole sneak around doesn't fit in with your earlier description of him being destructive etc. and his ability to "slip through walls" isn't particularly hyping me up for his inclusion in a Smash Bros. game.If The Super Wario Bros game is true, they could have Wario be the guy who collects the treasure and whatnot, and Waluigi could be the sneaky guy who could slip through walls or crawl under things Wario couldn't (Being so thin has to come to an advantage sooner or later) It could be like a Wario Land game, only you could switch between playing as either Wario or Waluigi (but you'd have to use both of them at some points in the game). So imo, he wouldn't bring the Wario Series down at all