My perspective is skewed to the smaller gamers (4-10 year olds) and the family type games so this title for me was supposed to be a big hit. Instead it is a small hit with the probable lifespan of 5 to 6 plays over the period of the next week or two, or the occasional friend of the kids who has not seen the title before.
We gave this game a thorough playing last night, and at first it was unique in the fact you have to shake the controllers, but the screen didn't convey a sense of speed so you sometimes shook the controllers just to be shaking them. The shooting items (or punching with Donkey) was fun too (at first) and I can see this being a quick game to play for new Wii players. I cannot imagine playing all the way through this game though it would be too repetative (sp). I'll wait for some kind soul to upload the completed save and then apply that so we can have quick fun with all the characters.