Wuhu Island, the setting for Pilotwings Resort, is such a fun place to hang out at. You can really get one of those stay-cations you hear about by kicking around there for a while – either in the aforementioned 3DS game, Wii Fit, or Wii Sports Resort.
In other news, like every other Nintendo property, Miis are hard to draw and look a little weird if their proportions are not exactly matched.
I think the Miis are invincible! I've crashed a jet plane into the ground at 200 MPH and the little fellow just bails out and slowly parachutes down. In Wii Fit, I've seen them jump off of a fifty-foot drop, land with a crouch, and keep running.