I just got it last night, took it over to a friend's, and we happened to have 2 other people there.
If you buy this game for ANY reason, make it the Multiplayer. Nintendo has fucking DONE IT RIGHT. We were laughing our asses off last night as we kept fucking each other over, throwing each other into pits, using each other as shields, eating each other with Yoshi, etc. It's an awesome way to kill an otherwise boring night.
Anyone else have it?