picked up Super Mario Maker for 3DS

[midnight]

that's the actual name for it. Directly under the title, it says, "Only plays in 2D."

I found that funny.

[Sandstone]

The 3d style platformers are considered 2D these days as long as they only use side angle. Sometimes they refer to it as 2.5D though that is less common now.

[Raptorpat]

it's referring to the stereoscopic 3D slider; it's not enabled for this game unlike say New Super Mario Bros. 2 (which was also a sidescroller)