Holy crap, if you own a Wii, or even if you intend to own a Wii in the future, you owe it to yourself to go track down a copy of Zack & Wiki. Especially if you love puzzle and adventure games.
Some reviews have cited the setup of dividing the game into independant stages as a contrivance unique to this game, but I found it to be plesantly reminiscant of The Bizarre Adventures of Woodruff and the Schnibble and other Coktel Vision adventure games. You might not have played any of these games either, but believe me this is high praise.
Really, go get this game now. Send a message to Nintendo, Capcom, and other developers that we want unique, quality games on the Wii.