Stylistically it features characters similar to Miis, but they're more advanced looking with realistically shaped arms and legs. So far a good range of sports has been shown, they are:
Here's a scan of the archery event, along with the all-important demo from a fun oriental fellow.
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Rest In Peace
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The Force is strong with this one...
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Mario Kart 8 DLC Pack 2...OH YEAAAAH!
Nintendo should do this more.
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Project Ukulele - Possible Hint at Characters
Could it be?
Wii's World is not officially affiliated with Nintendo! (but they wish we were).