As a result of Michael Phelps' astounding eight gold medals at this year's Olympic Games, many adults (and thus likely a fair amount of children) have been glued to their television sets night after night, cheering for the United States (or country of choice) to win a medal.
Thus, if your children (or you yourself!) were swept away by Olympic fever, and you happen to own a Wii, then this game will entertain you to your wits end! Much like the U.S. competing against other countries in the real Games, this game pits classic Nintendo characters (Mario, DK, Peach, Link, etc.) against characters from the Sega brand (Sonic, Tails, Shadow, Eggman, etc.). Much like Super Smash Bros. "determines" who could beat up who, this game establishes victory based on athletic achievements in such events as swimming, track, and field.
The controls are easy to pick up, taking full advantage of the Wii nunchuk format, yet challenging enough to keep you raring to drop that last .10 of a second to win first place.
Overall, this is a great game for those who have caught Olympic fever, or just are intrigued by seeing the Nintendo and Sega franchises combine.