If we can still talk about Waluigi, I want to show you guys my ideas for a custom specials moveset for the Waluigi mod. I only want to change his specials because all his other moves look really good. Here they are:
Up Special: Waluigi "air swims" upwards (either straight up or at an angle) instead of side-ways.
Side Special: Since Waluigi's "Air Swimming" move was mapped into his Up-Special, that left room for a new Side-Special. So I immediately thought of giving Waluigi one of his go-karts from the Mario Kart games. It would function exactly as Brawl Wario's Side-Special. And it fits perfectly in Project M because PM Wario no longer uses his bike anyway.
Neutral Special: It stays exactly the same. The "WAAAHH" is too brilliant.
Down Special: Waluigi uses his Psycho Iris powers from his infamous fan-game as a telekinetic command-grab. It's either this, or Waluigi can just pull out a bob-bomb.