You wonder (pun intended) what Nintendo could do new with one of the longest running game series and then they basically make a game where each level is a new idea, often polished to a perfect sheen, and what you are left with might be the best mainline 2D Mario platformer. Yes, I said it. Take off the nostalgia glasses and the old games have lots of problems and the new games have some rough parts too. This one feels like the team went back and looked at what made every single 2D Mario game good and said, let's do that, but even better.