The biggest head-scratcher about Cranium: Kabookii is why would you buy it for the Wii, when all interactions are restricted to what you can do with a Wiimote. Instead, why not get the board game, which is much cheaper and allows you to draw with a pen and paper and mold with clay? WorthPlaying would understand if Kabookii had some sort of online multiplayer option or single-player campaign, but absent those things, there's really no reason to skip the non-digital version.
While the title is enjoyable, it can't escape two simple truths: It's a minigame collection, and it's based on a game that is more fun when played in the traditional fashion with friends gathered around the playing board rather than the Wii console. There's nothing particularly wrong with Kabookii, but sometimes, you just can't beat the original.