Satoru Iwata, who was among those who had come up with the name, said Nintendo's handheld Game Boy was first criticized, too, and had even prompted questions about whether girls could play.
But once a product catches on, he said, so does the name. Since its release in the late 1980s, Game Boy has become one of the world's most popular and enduring line of portable game systems.
"I have never thought the name was a mistake," Iwata said of Wii. "Some people seem to have a problem with it now, but I think they'll grow to like it."
Wii -- pronounced "we" and meant to conjure the idea of fun for everyone -- offers easy-playing games, regardless of sex, age or skills, according to Nintendo, the Japanese maker of Super Mario Bros. and Pokemon.