World 4 (New Super Mario Bros.)

World 4 is the fourth world in the game New Super Mario Bros.. This world is only unlockable if Mummipokey, the boss of World 2 is defeated while Mario or Luigi are in mini form. Defeating the boss of this world allows Mario to progress to the snowy World 5.
The boss of this world is Mega Goomba that can be defeated either by using elevators to reach its head or by using 27 fireballs.
== Layout ==
It is a jungle-themed world with toxic purple water seeping through the ground. The world is largely inhabited by Koopa Troopas and Goombas, with Scuttlebugs dropping down from the boughs of the trees. As aforementioned, a large swamp of toxic purple water flows through the world. If Mario or Luigi were to touch the water, they would die instantly.
== Levels ==
== Secret Exits & Unlockables ==
=== Secret Exits ===
* World 4-1 - 1-UP Mushroom House, and 
* - to World 7
=== Unlockables ===
* Power-up Mushroom House beside World 4-2
* World 4-A after 
* Mega Mushroom House beside World 4-A
* 1-UP Mushroom House beside World 4-5
* Power-up Mushroom House beside World 4-6
== Enemies introduced ==
== Trivia ==
* If the player looks closely on the world map, when Mario walks on the secret path from World 4-1 to the green Toad House, he appears to walk backwards on one of the sections.
== Walkthrough ==
New Super Mario Bros. (DS) 100% Walkthrough - World 4 (All Star Coins & Secret Exits)|by packattack04082
== See also ==
* World 5 (New Super Mario Bros. Wii)
* Soda Jungle
fr:Monde 4 (New Super Mario Bros.)
de:Welt 4 (New Super Mario Bros.)
Category:Worlds in New Super Mario Bros.
Category:Worlds
Category:Forest-themed