Mario & Sonic at the London 2012 Olympic Games: All Rival Showdowns [1080 HD] 

Thaddaeus Wong meh I like the airboards better

Thaddaeus Wong I like them both but they should of have miis so you can race them and the boss battles would have been cooler in sound riders

THAT’S WHAT IM SAYING!

London party and you have to wait and wait till toad or cream says if you spot these then you can play with them

That wasn’t a rival. That was an asset of sorts for Dream Spacewalk.

same with gooper blooper

Anatu Umar 1

Same. He's just a slightly more evil Eggman clone, and Sega seems to have no idea what to do with him. At this point, he's in more Olympic Games than actual Sonic games.