More about Downtown: I think they deadass just forgot to upscale it. The cutscene texture is 2048x2048. The Terror Time texture is 2048x2048. But the normal gameplay one is 1024x1024.
I know companies can make mistakes, but… Still…
Interesting 1S map quirks i have found today
One of Downtown's biggest textures is 3DS res, (Which explains why the golden egg looks so bad) but the cutscene map for Downtown is 2x
A wall on Uptown's Everymart is 8x bigger than 3DS, as opposed to the usual 2x