Wario (full name Wario the Plumber, also known as Wario Gaywalker or Fartudinous Lump of Poop) is Mario's rival. He appears in some of OnyxKing67's videos.
In OnyxKing: Waluigi The Super Hero!!! 🦸♂️, he is currently in coma, after being sucked into SMG4's computer by Zelus.