Editing Fall

|1=[[File:SMA2 Fall at Donut Plains.png|200px]]<br>[[File:SMW-Autumn.png|200px]]

|2=[[Donut Plains]] (top) and the [[Vanilla Dome]] (bottom) during Fall, from ''[[Super Mario World: Super Mario Advance 2]]''

'''Fall''',<ref name=Fall>{{cite|language=en-us|date=August 1991|title=Nintendo ''[[Mario Mania]]'' Player's Guide|page=159|publisher=Nintendo of America}}</ref> or '''Autumn''',<ref name=Fall/> is an unlockable alteration in ''[[Super Mario World]]'' and its [[Game Boy Advance]] remake, ''[[Super Mario World: Super Mario Advance 2]]''. This event changes the appearance of certain enemies, and it alters the color palette of the overworld map of [[Dinosaur Land]] to reflect the season from Spring. The theme is unlocked by completing [[Funky (level)|Funky]] in the [[Special Zone]] in ''Super Mario World''; in ''Super Mario World: Super Mario Advance 2'', it is unlocked by [[Completion|completing all 96 exits]]. Once these prerequisites are reached, the changes will take effect, preceded by a short cutscene in the GBA remake: [[Luigi]] is shown on a hot air balloon tossing masks down with a message stating ''"[[Mario]] and Luigi have found all of the goals. Congratulations!!! Now you can play a slightly different Dinosaur Land!"'' After this, Mario is seen running, where he [[jump]]s on a [[Koopa Troopa]] and takes its shell. A mask falls, and the Koopa walks to it and starts wearing it. The scene then cuts back to Luigi tossing masks, with [[Cape Mario|Caped Mario]] attending Luigi. [[Super Koopa (enemy)|Super Koopa]]s then appear, where they then carry a large sign saying "Congratulations," and Mario and Luigi flash their {{wp|V sign}} to the player. Once Fall is activated, these changes cannot be reversed unless the save file is deleted and a new game is started.

Fall causes Dinosaur Land to change color, with green objects becoming orange-brown and brown places becoming green. The water also becomes a teal color. Everywhere on the overworld map is affected, including places such as the [[Valley of Bowser]]. Although all of Dinosaur Land is changed, the visual appearance of the levels is not affected. The intro of ''Super Mario World: Super Mario Advance 2'' will show Dinosaur Land in Fall at the start and end.

Various enemies have their designs changed in Fall, including on menus and during the credits. In the original ''Super Mario World'', these enemies receive new names in the credits, while in its Game Boy Advance remake, their names do not change.

*[[Piranha Plant]]s, [[Jumping Fire Piranha Plant]]s, and [[Jumping Piranha Plant]]s have jack-o'-lantern heads, and the latter are also known as Jumping Pumpkin Plants. While not an enemy, [[Beanstalk]]s also undergo this change.

*[[Bullet Bill]]s become [[Pidgit]] projectiles and are also known as Pidgit Bills. In the original ''Super Mario World'' only, there is a quirk that causes the diagonal and vertical Bullet Bills of [[Vanilla Dome 4]] to not change. They also visibly flap their wings in the GBA remake.

*[[Koopa Troopa]]s and [[Koopa Paratroopa]]s wear Mario masks instead of Koopa shells, and the former are also known as Mask Koopas.

**In some levels, this also causes any Green Koopa Troopas and [[Green Shell|their shells]] to become Yellow, and Red Koopa Troopas and [[Red Shell|their shells]] to become Blue. However, this does not apply to any standalone [[Unshelled Koopa Troopa|unshelled Koopa]]s or any other Koopa Troopa species.

*When [[Buzzy Beetle]]s are inside their [[Buzzy Beetle|shell]], they immediately come out without warning rather than shaking before they start coming out and moving again.

*[[Pokey]]s' segments turn into saws (''Super Mario Advance 2'' only).

In ''[[Super Mario-kun]]'', in chapter 7 of [[Super Mario-kun Volume 2|volume 2]], Mario gets shocked by an [[ON/OFF Switch]] and wakes up in a dimension where the Yoshi's Island is in Fall. Mario is stunned, seeing the strange enemies (especially the Koopas with his face) and a violent [[Ura Yoshi|Yoshi]]. Enemies such as [[Boo]]s, [[Monty Mole]]s, and [[Pokey]]s also have fall variants here despite never having any in the original ''Super Mario World''. After creating a giant shockwave with a [[Dragon Coin]], Mario wakes up in the normal world, happy to see his brother and a gullible and always hungry Yoshi. In the next chapter, Mario, Luigi, and Yoshi face against a Jumping Pumpkin Plant, although in the normal world and not during the Fall.  

SMW MaskKoopa Green.png|Fall-themed Green Koopa Troopa (Mask Koopa)

SMW MaskKoopa Red.png|Fall-themed Red Koopa Troopa (Mask Koopa)

SMW MaskKoopa Blue.png|Fall-themed Blue Koopa Troopa (Mask Koopa)

SMW MaskKoopa Yellow.png|Fall-themed Yellow Koopa Troopa (Mask Koopa)

SMW KoopaParatroopaMask Red.png|Fall-themed Red Koopa Paratroopa

SMW MaskShell Green.png|Fall-themed Green Mask Shell

Flashing_Koopa_Mask_sprite_SMW.gif|Fall-themed [[shell (flashing)|flashing Mask Shell]]

Galoomba Fall SMA2.png|Fall-themed Goomba (''Super Mario Advance 2'' only)

Flying Goomba Fall SMA2.png|Fall-themed [[Paragaloomba|Flying Goomba]] (''Super Mario Advance 2'' only)

Para-Goomba Glasses SMA2.gif|Fall-themed [[Parachute Galoomba|Para-Goomba]] (''Super Mario Advance 2'' only)

SMWGreySawPokey.png|Fall-themed Pokeys (''Super Mario Advance 2'' only)

Fall Enemies Super Mario-kun.png|Fall enemies seen in volume 2 of ''Super Mario-kun''

|Jap=裏ワールド<ref>{{cite|language=ja|publisher=[[Shogakukan]]|date=October 19, 2015|title=''Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook'', ''Super Mario World'' section|page=63|isbn=978-4-09-106569-8}}</ref>

|JapR=Ura Wārudo

|JapM=Flipside World

|Fre=Monde caché<ref>{{cite|title=''[[Super Mario-kun|Super Mario Manga Adventures]]'' Volume 2|page=92}}</ref>

|FreM=Hidden world

|Ita=Mondo al rovescio<ref>{{cite|date=November 15, 2018|title=''[[Super Mario Bros. Encyclopedia|Super Mario Bros. Enciclopedia]]''|publisher=Magazzini Salani|language=it|isbn=889367436X|page=63}}</ref>

[[File:SMW FlowerPerson.png|50px|thumb]]

*In ''Super Mario World'', [[Galoomba|Goomba]] has [[tcrf:Super Mario World (SNES)#Post-Special World Galoomba|duplicate sprites]] meant for the Fall theme, albeit none for [[Parachute Galoomba|Para-Goomba]]. It is possible that it was meant to have a Fall-themed design before ''Super Mario Advance 2''.

*Among [[list of Super Mario World pre-release and unused content#Sprite documents|early assets]] for ''Super Mario World'' is a flower-headed, [[Toad (species)|Toad]]-like creature, believed to be intended for the Fall theme of [[Piranha Plant]], along with a [[Jumping Piranha Plant]] version resembling a [[Fire Flower]].