Super Mario Bros. is the most popular game since Nintendo.
Considering the existence of Nintendos 1,2, 3, SuperNintendo, Nintendo 64, DS, Wii... [did I forget any?]
Imagine the real 3D game.
The game is manual. It was built inside a paper box. The cenario was made in a programming platform. Wanna see how it works?
Mario-in-a-Box