Unlike traditional video games that use a joy stick or finger controls, the Wii requires users to replicated the action of the sport they are playing. "You can't play tennis with your hand in your lap," Forsberg tells her patient. "You have to move your whole arm."

"We're honored to have our characters take what sometimes may seem like dry topics and help make them come alive for students," says George Harrison, Nintendo of America's senior vice president of marketing and corporate communications. "The collaboration provides an opportunity for children to learn 21st century science using 21st century tools with characters they're familiar with."

"What we're trying to do is take people into a virtual crack-related neighborhood or crack-related setting and have them experience cravings, just like they would in the real world," Rosenthal said.