Waluigi (Non-movie timeline)

Waluigi is a character from Nintendo and is Wario's brother. Due to a license deal with Viacom and Nintendo, Waluigi and Wario are the only ones who are allowed to be in spin-offs, with the exception being in Nintendo Crossover.

Role
in season 1 episode 2 of Nintendo crossover, Waluigi and Wario attack Bikini Bottom, but is stopped by Mario, Luigi, Sponegbob, and Patrick.

In the Nintendo crossover episode, Super plankton Bros., Plankton train Wario and Waluigi.