The game features some of the best level design to date from Nintendo, and the fact it's in glorious HD makes it even better. Levels have a uniqueness about them that stand out from others. Part of the fun is seeing what comes up next, so I won't spoil all the details. One level that plays with shadows has superb lighting effects while another is a tribute to Mario Kart that I wanted to play again and again. The new cat power-up will have you climbing up every wall to find secrets. Nabbing cherries to control multiple Marios or others at once leads to some very strategic situations.