Mario and Sonic at the Olympic Games
Platform: Nintendo DS
Year Released: 2007
It may not seem like a big deal now with all the Sonic titles on other systems, but back in 2007, this was a pretty big deal. It had rivals, flat-out rivals, in the same GAME together? Blasphemy! Madness! (Sparta?). While it wasn't the most inspired title to put the formers enemies in, it was satisfying seeing Mario beat Sonic IN A RACE if you've always been a Nintendo fan boy. It was silly, harmless fun.