World 1 (New Super Mario Bros.)

World 1 is the very first world in New Super Mario Bros.. It is themed as a plain near Peach's Castle. The boss of this world is Bowser himself.
== Layout ==
The appearance of World 1 is very simple. It takes a grassy plain filled with bushes, mushrooms, fences, and flowers. There are also some brick blocks lying around the map. Behind the tower, many rocky cliffs can be seen with dark green grass on them. Peach's castle can be seen in the background right before World 1-1. World 1 is also surrounded by bright blue water, which also connects to World 1-A.
== Levels ==
== Secret Exits & Unlockables ==
=== Secret Exits ===
* World 1-2 - Power-up Mushroom House and World 1-Tower
* World 1-Tower - World 1-Cannon
=== Unlockables ===
* 1-UP Mushroom House beside World 1-3
* Mega Mushroom House beside World 1-4
* World 1-A after World 1-4
* 1-UP Mushroom House beside World 1-5
== Enemies introduced ==
== References in later games ==
* The background for World 1 can be seen in a few Mario Wii games, such as Mario Kart Wii and Mario & Sonic at the Olympic Winter Games.
** In Mario Kart Wii, the yellow mountains found in levels such as the outside portions of World 1-2, , World 1-4 and World 1-A can be seen in the backgrounds for Luigi Circuit and Mario Circuit.
** In Mario & Sonic at the Olympic Winter Games, a backgroud based on World 1-1 appears in during the first segment of the Mario World Routine of Dream Figure Skating.
== Walkthrough ==
center|thumb|400x400px|by [https://www.youtube.com/channel/UCg_j7kndWLFZEg4yCqUWPCA packattack04082]
== See also ==
* World 1 (Super Mario Bros.)
* Grass Land
* World 1 (New Super Mario Bros. Wii)
* World 1 (New Super Mario Bros. 2)
* Acorn Plains
de:Welt 1 (New Super Mario Bros.)
fr:Monde 1 (New Super Mario Bros.)
it:Mondo 1 (New Super Mario Bros.)
ja:WORLD 1 (NSMB)
Category:Plains-themed
Category:Worlds in New Super Mario Bros.