User blog comment:'Sonic the Hedgehog'/Mario and I should work on an adventure game together./@comment-4125529-20110721225115/@comment-17720060-20110721225437

Ever since the Olympic Games, the two were considered friendly rivals by many people. Even NintendoPower said they aren't intense rivals anymore. And the Olympics trailers say that they aren't rivals, since they shake hands, work together, smile at each other, etc. So it's obvious that they're still rivals, but in a Sonic-And-Knuckles-Like-Relationship: They're rivals but close friends.