If Mickey was in Sonicaters Hey Minnie! I heard about that Sonicaters thing and decided to try it out, wanna see my avvy? Really? I would be really happy to... *Mickey shows this to Minnie* OH MY GOODNESS... *she screams*
So Sonic is bigger than Mickey Mouse.... More people in the world know of Mickey Mouse than they do Mario. Even go to 3rd World Countries and they will know of Mickey Mouse. Disney is incredibly massive.