Even though it looks like a GameCube game, it's only playable on a computer and it has a Flash menu from which you can see information on the console, screenshots and trailers for upcoming games, and get wallpapers for your computer. There are also some outdated links to Nintendo websites like Nintendo Power and Nintendo Cube Club.
Check out the video tour I recorded of the interface and information inside. Interestingly, it advertised an SD-Memory Card Adapter, which I don't remember ever being officially released.
I hope you enjoyed this small blast from the past. For more Nintendo stuff from around this time, check out that time Nintendo sent out mannequin hands to promote the DS or Camp Hyrule wallpapers!