Nintendo has unleashed a rather clever YouTube ad for Wario Land: Shake It. It starts out simple enough, with mid-quality gameplay footage (first sign of trouble: the embed code is for Facebook only). And then ... well, we don't want to spoil it for you. Needless to say, it was a fun surprise. If the reviews are any indication, it might end up being the best thing to come out of the tremor-phillic Wii game.