User blog comment:JKGame/Upcoming Rap Battle Projects/@comment-34129479-20181203071950

Looking forward to the upcoming battles! Especially the Smash Bros one and Pinkie Pie vs Kirby. :)

As for the cartoon movie villain royale, my suggestions would be:

Burger Beard (since the only movie-exclusive villain in the first Spongebob movie was the Cyclops)

Slade from the Teen Titans GO! movie (that particular version of the character came from that movie, so I think it counts?)

And one of the DBZ movie villains (Cooler and Broly tend to be the fan favorites, but I'd lean toward Broly because of the upcoming Dragon Ball Super movie)