A while back, Shinya Arino host of the Japanese cult favorite Games Center CX, had Shigeru Miyamoto on an episode and he had Miyamoto play through a Super Mario Maker stage.
Now, it seems that Nintendo wants everyone to try out this stage that had managed to trump Miyamoto. In the upcoming update that will most notably be adding checkpoint flags, this stage will be deployed and players will be given a small reward for beating it in the form of a Shinya Arino costume. Here’s a video of everything the update will be adding: