https://www.polygon.com/2018/8/8/17663978/super-smash-bros-ultimate-king-k-rool-nintendo-switch

Super Smash Bros. Ultimate. will introduce another Donkey Kong character to the game. King K. Rool, a long-time enemy of D.K. and his simian dudes, enters the fray for the first time.

During today’s Super Smash Bros.-centric Nintendo Direct, the company announced two new characters, including Simon Belmont and his echo fighter, Richter, before ending the presentation with King K. Rool. Donkey Kong fans have wanted another rep from the franchise for some time — and K. Rool in particular. He first appeared in Donkey Kong Country for the Super Nintendo, a series where he continued to be the main villain.