You fucked that quote up pretty bad by the way.
Yeah, you can either mix and match sets or cotton alley is the ultimate set that has every hazard. You'll need to ask the editors about it.
For other examples look to the expert remix chapter and maybe Cramps. I don't remember if Nova switched tilesets in it.
It's evident when you see Salt Factory and Hell components in the same chapter that he switched tilesets.
I guess that more or less confirms it.
I am gonna be redrawing level plans with more elements now... and possibly renaming some as design changes happen.
Don't make it too hard! I don't want a Jill Cotton Alley.
It'll be difficult, but not impossible like cotton alley.
I'd say the light world will start out as the difficulty of chapter 6 light world but slowly ramp into the Chapter 5 dark world difficulty.
Maybe ONE level will be cotton alley difficulty, in the dark world.