Thread:WikiExpertXV/@comment-27996717-20180613191849/@comment-12684213-20180614104424

General Maho wrote: Also, while Super Smash Bros. Ultimate will feature  EVERY  character that has ever been in a Smash game, it seems poor Waluigi isn't a playable character. D: Really? Wow, I never knew that. This will be awesome!

And yeah, it's like Nintendo thinks Waluigi isn't good enough as a fighter in the Smash Bros. games (unlike in the Mario spin-off games).