If there is some kind of coding I believe we should all be even a little skeptical, designers don't just "leave" coding in a game, especially a Nintendo made game, if there is coding it's there for a reason, time will tell what it's really there for.
That would be a very sneaking, ingenious idea on Nintendo's part! Instead of paying to take up memory on the Wii, pay to unlock characters and things already on the game disc!