Kirby vs Whitebeard
Yeah, not a One Piece fan, but I randomly did some reading yesterday and I wanted to see what the wiki wouldn't tell me, so I'm putting him up against one of the most versatile characters I can think of.
I know Whitebeard is One Piece's strongest character, or at least physically strongest, and may or may not have the power to tear apart the world, but I'm giving Kirby a few of his abilities as well. He uses them all simultaneously. We'll call it his JUSTICE! ability.
JUSTICE! ability combines all the strength of:
Fighter
Suplex
Ninja
Wheel
Yo-Yo
and Jet
The fight takes place on a beach of an ocean on Pop Star. There's a few normal (for real life) sized cannon balls laying around as well.
And to get it started:
Kirby has the strength necessary to crack his planet, Pop Star, all the way across. You can see the animation for a brief second three times on the video. It doesn't look like that in game. Apparently it's a problem with the guy's editing.