"A 'chestnut' in Japanese is 'Kuri,'" Mario creator Shigeru Miyamoto told ... So we decided we needed a "bad mushroom." It was that simple problem in need of a solution that spurred the creation ...

No, it’s this: How the hell does the economy of the Mushroom Kingdom work? So, the clip in question shows Mario and Toad walking through a bustling Mushroom Kingdom town, full of other Toads.