According to interviews with Shigeru Miyamoto and depictions in marketing materials, Mario Bros. is…

According to interviews with Shigeru Miyamoto and depictions in marketing materials, Mario Bros. is supposed to take place in the New York sewer system. However, the manuals for the Atari versions of the game state that the game takes place in Mario and Luigi's house instead (first paragraph in the image). Source: The Manual Librarian Main Blog | Patreon | Twitter | Bluesky | Small Findings