The challenges app for Rayman Legends made me want to actually get Legends when it comes out, and more so made me interested in Rayman. It's free on the Wii U so those users really don't have much of an excuse not to play it. It's challenging and provides enough to taste to wet whistles, and truly show what Legends is up to. And if there are more levels like Castle of Rock, Rayman Legends will end up being one of my favorite games.