Wii works wonders here with Wii Sports
The characters you play as in the game are your little Mii guys you create for you Wii console. The little personalities that your little Mii react or do to your playing, is incredibly funny, and for basic animation and modelling in a Wii game, the expressions sure are sharp.
The programming in this game is mezmorizing. Each action you do, is solid and fluid and the game does every movement you do from the Wii Remote or Numbchuck. The programming really does what its' meant to do, and it is technically flawless.
As far as I can recall from playing Wii Sports, there are really no problems with it. Apart from the fact, this game is so good, it can get a little too addictive, so I advice you not to play it every consistent, not unless you want sore arm strain or not really doing anything else natural, which is what we should all do in life.
Overall, Wii Sports is one of the most charming games ever created, and its' programming will keep the Wii standard set very very high.