If I tell you that this game gave me myalgia as hell, go figure what I think of it.
I've just stopped playing through the Advanced Class, just because my sister and stephmom wanted to watch The Unborn, and once again I feel the pain in my arms, and satisfaction at the same time. I think the character roster is pretty nice, because Shadow is in there, which is whom I played through the circuits with so far. And also who's got a gold medal in nearly every event. The graphics are good enough for a game as abstract as Mario or Sonic. They all look smooth and are animated nicely. I'm also fond of the way that the Olympic Games were ported to a Wii game. One thing that gets butchered by the critics is that the motions you have to make are very similar. But that's just something that I really like. It makes me feel familiar with any new event I encounter, even though I haven't played it yet. Running is the same in every sport that involves any, which is great. You'll memorize the motions a lot better, and you won't have to go through the controls at each game.
I also like the addition of the so called Dream Events. These are just some supernatural versions of sports, which basically just means there's special attacks or weapons to be used. For instance, in the Dream Run you can find the Mario Kart-like boxes which will give you weapons which you can use while running through the track.
And of course this game is really entertaining as a multiplayer. My sister kept filming my stephmom and I as we were playing the game, which delivered some hilarious results, plus of course the fact that we kept laughing about how tired we were getting, and how we were both gonna be wrecks tomorrow.
One thing that could've been improved in my opinion is that you can set as many Olympic or even World Records, and earn as much medals as you want in multiplayer, but the game will not save it. That's a real bummer, because I threw 98m with a javelin using Knuckles, the game did not save it, and I never got that again, allthough I did set a new World Records. So it would've been nice if that was saved, and not simply forgotten.
All in all, I am really fond of this game, and in my opinion Mario and Sonic's collaboration DOES earn them a spot on the medal stand.