User blog comment:Dreggman rox/Yosh?/@comment-17720060-20110722195947/@comment-17720060-20110722200944

Remember that Nintendo and SEGA were intense rivals at that time. They usually made fun of each other and their mascots in some of their games.

Wait......

I was going to say something that was going to say they wouldn't have attempted that, but my friends have said that Eggman Yoshing all over the place was really annoying, so they could've been making fun of Yoshi.