Speculate among yourselves.

As far as I know, I am the only person to have come across this. Maybe not. But it seems that way.

Exactly whats so secret? They seem to be out in the open xD

I don't get it.

I've been a bit on break from Nintendo news to be fair, but I still don't really get this post.

Okay, maybe "secrets" wasn't the best word.

My point was to show that there are some things that people seem to have overlooked. For instance, the button with a Mario sprite and an arrow. I just thought it would be fun to speculate about what its purpose could be.

Everything shown here looks the same as the WiiU version (I have never used SMM, but I have seen videos)

Ah.

My guess is that it flips between retro and modern style

Mario: Mama Mia! TOO MUCH STYLES!

Toad: So? Its What The Games About!

Toad: It Allows These Four Styles, Retro, Mario 3, Mario World, And New Super Mario Bros U!

Toad: And It Also Allows Overworld, Underground, And Underwater! Also Boo House

Mario 64 Mario, Mario 2 Mario, New Mario Bros DS Marios: WHAT ABOUT US!?!

Toad: Maybe In A DLC... But 64 Mario?

Mario 64 Mario: Yes?

Toad: Sorry No Actual 3D Like You... Sorry