Many people who makes character demonstration use Kung Fu Man as training dummy, but they may be some exceptions like if character has projectile reflect move, they may use Mario as temporary dummy (as Elecbyte's Kung Fu Man has no projectiles unlike Mario, who has one)
Naaaaaaah really? I thought it was just some character they made up and use memes as attacks, thank you, from the bottom of my heart, now i know something i didnt know. Btw: i just wanted to use sarcasm, it will acctually help people that dont know