I'm going to try my best to do every stage with no deaths, but I make no promises on that front.
Also, pure keyboarder here. I'm sure this is going to find a way to backfire on me at some point down the line, heh.
With that, the opening stage and a visit to a frosty environment. The difficulty hasn't reached any high extremes yet (Although that Chill Penguin fight had me on edge the entire time when I was basically one hit away from death), but rest assured, it'll reveal its fangs soon enough.