CDi zelda comes to mind... If it is on a nintendo console, then it would have to be FS. Although it is fun to play, it doesn't seem link a full game, and I don't think that it was intended to be. I think it was to try the multiplayer and put it out there as a zelda minigame.
I would say the CDI games. They were absolutely terrible. outside of the 'other' games, I would have to say Four swords. Sure the multiplayer was fun, but it was pretty shallow other than that. It was kind of a series of minigame levels.