So we have:

-Dedede face glitch
-Isabelle and Villager pocket glitch that causes the game to crash
-Isabelle infinite assist trophy glitch
-Glitch that causes Ridley to kill Sonic instantly
-Inkling's ink causing certain character to move farther when they perform the special moves while stepping on the ink. The ink is normally supposed to cause the characters to travel less distance.
https://www.youtube.com/watch?v=4WwpaSg0bb0
-Rosalina's down special causing Zelda's phantom to travel in circles.
https://www.youtube.com/watch?v=GWqqaZAQloI

What's next?

King Dedede had enough…
(here's the audio)