Editing World-e

{{distinguish|[[Mario vs. Donkey Kong#Card-e+|e World]] from ''[[Mario vs. Donkey Kong]]'' or [[Orbiting Observatory]] (also known as World E) from ''[[Mario vs. Donkey Kong: Tipping Stars]]}}

[[File:World-e SMA4.gif|frame]]

'''World-e''' (alternatively '''e-Reader world'''<ref>{{cite|author=Peterson, Erik|title=''Super Mario Advance 4: Super Mario Bros. 3'' Player's Guide|date=2003|publisher=Nintendo of America|language=en-us|page=16|isbn=1930206-37-2|quote='''Getting Started''' Before you connect your e-Reader to the GBA, scroll down and choose Level Card on the Select a File screen. You’ll be warped to e-Reader world.}}</ref> or the '''e-World'''<ref>{{cite|author=Hodgson, David S J.|title=''Super Mario Advance 4: Super Mario Bros. 3'' Prima's Official Strategy Guide|page=112|date=October 21, 2003|publisher=[[Prima Games]]|language=en-us|isbn=0-7615-4425-9|quote='''<big>N</big>OTE''' You can slide Demo Cards only in the main game world. You can slide Power-up Cards in both the main game and e-Worlds''{{sic}}''. You can slide Level Cards only in the special area by the castle in the e-World.}}</ref>) is a bonus [[world]], which has an island shaped like a lowercase "e," found only in ''[[Super Mario Advance 4: Super Mario Bros. 3]]''. The world itself is separate from the main adventure, and is not required for [[Completion|100% completion]]. Although it sports no standard [[level]]s within its vicinity, World-e features a [[Warp Zone]] that can warp [[Mario]] and [[Luigi]] to brand-new levels, provided the player has scanned and loaded the appropriate [[Super Mario Advance 4: Super Mario Bros. 3 e-Reader cards|level cards]] with an [[e-Reader]]. World-e is normally disabled in the European release due to the level cards being unreleased, but it can be accessible via exploiting a save file [[glitch]], revealing it had been fully translated and left intact. Hidden within the new levels are [[Advance Coin]]s. If the player accumulates enough Advance Coins, they will gain access to the three [[Toad House]]s in the area, where they can play [[minigame]]s in exchange for a few of their grand total of [[coin]]s from World-e. However, due to the limited support for the e-Reader outside Japan, non-Japanese players can access fewer levels and only enough Advance Coins to enter the [[Blue Mushroom House]] (a digging minigame). Non-international players can get enough to open the [[Red Mushroom House]] (a ball-throwing minigame) and [[Orange Mushroom House]] (a ''[[nwiki:Balloon Fight|Balloon Fight]]''-esque minigame, except going up and with a [[P-Wing]]). Certain levels also have an [[e-Coin]] hidden inside them. e-Coins are usually well hidden and can be collected only once. They are then put on display in the [[e-Coin Castle]]. However, due to the premature cancellation of the e-Reader outside Japan, only three e-Coins can be obtained elsewhere&mdash;the [[Mushroom]], [[Super Leaf]], and [[Super Star|Starman]] e-Coins. Non-international players were able to get the [[Fire Flower]], Mario, Luigi, [[Toad]], and [[Princess Peach]] e-Coins along with the first three.

In all [[Virtual Console]] and [[Game Boy Advance - Nintendo Switch Online]] versions of the game, all levels in World-e are unlocked by default (being present in the European version for the first time), including all of the levels released in Japan. Consequentially, all World-e Toad Houses are also accessible upon the player gaining the necessary Advance Coins.

|A remake of [[World 1-1 (Super Mario Bros.)|World 1-1]] from the original ''[[Super Mario Bros.]]''

|[[Wild Ride in the Sky|●01 Wild Ride in the Sky]]

|An auto-scrolling sky level with many moving [[platform]]s.

|A level with [[grass]] to pull out [[vegetable]]s like in ''[[Super Mario Bros. 2]]'' and a group of [[Chargin' Chuck]]s.

|-

|[[File:Doors o' Plenty.png]]

|An underground tunnel level with coins. The player needs to hit [[P Switch|Switch Block]]s to turn coins into pathways. 

|A castle level with [[Fire Bar|Fire-Bar]]s. Two [[Boom Boom]]s are at the end as bosses.

|A sky level with many [[Note Block|Jump Block]]s forming the way.

|-

|A level consisting of an underground cave segment and several aboveground ice-themed segments.

|A short level with an optional maze of doors and rooms requiring the abilities of the [[Tanooki Suit]].

|[[File:SMA4 Sea to Sky Screenshot.png]]

|A level with seaside and underwater segments and a final sky segment requiring the [[Cape Feather]]'s flying ability.

|-

|[[It's a Shoe-In|●16 It's a Shoe-In]]

|A castle level with many obstacles requiring the [[Goomba's Shoe]].

|[[Slip Slidin' Away (Super Mario Advance 4: Super Mario Bros. 3)|●17 Slip Slidin' Away]]

|An ice-themed level with many [[Stretch Block]]s and [[Bumpty|Bumpties]], with a back-and-forth auto-scrolling segment near the end.

|A Ghost House level with a maze of doors, [[Snake Block|snake platform]]s, and [[P Switch|Switch Block]]s. A [[Big Boo]] is at the end as the boss.

|-

|[[Caped Escape|●24 Caped Escape]]

|A castle level with many spiked floors, requiring the player to stomp on enemies to cross them. A Boom Boom is fought here.

|Jpn2=ワールドe+<br>(Late-shipping version,<br>[[Virtual Console]] version,<br>[[Game Boy Advance - Nintendo Switch Online]] version)

|Jpn2M=World e plus

|Spa=Mundo-e

|SpaM=World-e

|Fre=Monde-e

|FreM=World-e

|GerM=e-World

{{SMB3 levels}}

[[Category:Super Mario Bros. 3 worlds]]