Nintendo have today revealed that fans who want an even bigger challenge in Super Mario Maker will be able to get it in the form of the 100 Mario Challenge’s new Super Expert Difficulty. This will be coming in an update on March 9th. The update will also add 12 new Mystery Mushroom costumes as well as the below tools.
o Shake a P Switch to turn it into a key, and shake a Door twice to turn it into a Key Door. Creators can make enemies hold keys – perfect for creating boss battles.
o Shake a Coin to turn it into a Pink Coin: when players collect them all, a key appears.