Chill, dancy beats. Notes, lights, and a handful of bombs. (No walls). NPS for expert looks a little low, but I don't feel it's too easy or boring, because the patterns involve a lot of big, sweeping movements. Average notes per second (NPS) for each difficulty: Easy 1.35 Normal 1.90 Hard 2.26 Expert 2.78 High-quality audio from iTunes store.