Mentally and physically challenging, and good for rehab. Maybe the US military will put in an order for a few thousand Wii units? Excerpt and link below.

The Army hospital is experimenting using the popular video game console as a physical therapy tool for wounded servicemembers. Playing the game makes the often painful and boring therapy session fun, Roberts says. The alternative is squeezing a ball of putty.

“I wasn’t expecting much out of it,” said Roberts after using the game. “You know, it’s a video game. How much could it really do? But you don’t notice it while you’re doing it because your mind’s on the game. But then when you’re done? I was sore.”

Stars and Stripes
via GoNintendo