King K. Rool is the most iconic villain from the Donkey Kong franchise but hasn't appeared in any other games up until Super Smash Bros. Ultimate in 2018. In SMG4, King K. Rool is seen in SMG4: The Smash 5 Trials as one of the winners.
- SMG4: The Smash 5 Trials
- SMG4: War On Smash Bros Ultimate
- SMG4: 3 MILLION SUB FAN COLLABORATION!
- SMG4: Sans's First Day In Smash Bros
- SMG4: Super Mario Taxi
- SMG4: SMG4 🅴🆇🅿🅰🅽🅳🆂 His Brain
- SMG4: Nintendo Gets Deleted