Like every rumor that started on twitter, this will be false. There's no way Nintendo is letting a SEGA mascot be in a main line Mario game. It would just ruin the game it will not be Mario anymore. If the game was called Mario & Sonic Adventure or whatever, then yeah, but this is false.
What this might mean though is that there could be an upcoming 3D game in the Sonic Universe that we know nothing about, that could be the first 3D free roaming Sonic game ever, not linear like everyone before. So this could be a hint?
Proud poster of the 10000th reply at the Official Smash Bros Update Thread.
tag - "I wouldn't trust gamespot, even if it was a live comparison."
Bets with Conegamer:
Pandora's Tower will have an opening week of less than 37k in Japan. (Won!)
Pandora's Tower will sell less than 100k lifetime in Japan.
Stakes: 1 week of avatar control for each one.
