The Super Mario franchise has a rich history of strong, iconic level design. With Super Mario Maker, Nintendo puts the power to design these levels in your hands.
Upon first picking up the Wii U GamePad for my Super Mario Maker demo, I'm taken to a large list of pre-created levels. The list contains 40 total levels, which are split into worlds just like the Nintendo-designed Mario games. Answering the calls of many fans, Nintendo is enabling players to more or less create their own Mario games. Levels you create can be separated into worlds, which can then be ordered however you want. When you play the levels, you can set it to take you to the next sequential level after you complete it, giving it the feel of playing a legitimate Mario game.