User blog comment:KirbiMiroir/Subspace Emissary Bros./@comment-12498802-20160210175935

I think that Smash 4's intensity system should return. You change the intensity before each stage.

Backdrops

The following screens are shown for each Intensity. In both the 3DS and Wii U Version, the player will see Mario with the Fiend's Scale and a creature associated with the intensity (Same as Smash 4).


 * Effortless: A simple, moonlit lake.
 * Easy: Some greenery is on the edge of the lake, and the sun is beginning to rise. A cloud can also be seen.
 * Standard: The lake is almost completely covered in greenery, the sun is at its peak in the sky and more clouds are visible.
 * Tougher: More greenery - a tree can also be seen. There are a few more clouds and an additional lake.

What about the other intensities? You can help!