Level - Super Mario Wiki, the Mario encyclopedia
https://www.mariowiki.com/Level09.12.2021 · Mario (or other characters) must pass through one level to get to the next and ultimately complete the game. In some cases, there are also levels that are hidden and need to be unlocked. Contents 1 List of level themes 1.1 Overworld/grassland theme 1.2 Underground/cavern theme 1.3 Sky/cloudy/"athletic" theme 1.4 Castle/fortress/tower theme
Super Mario - Wikipedia
https://en.wikipedia.org/wiki/Super_MarioSuper Mario Bros. 3 is divided into eight themed worlds, each with 6–10 levels and several bonus stages displayed as locations on a mapped overworld. These locations are not necessarily in a linear order, and the player is occasionally permitted to skip levels or play the game out of order. Completed levels cannot be replayed.