Editing The Impossible? Maze

{{level infobox
|code=Extra 4
|image=[[File:The Impossible Maze.png|240px]]
|game=''[[Super Mario World 2: Yoshi's Island]]'', ''[[Yoshi's Island: Super Mario Advance 3]]''
|before=[[Hookbill The Koopa's Castle|<<]]
|after=>>
|track=In Front of the Boss' Room
|sample=[[File:SMW2YI Room Before Boss.oga]]
}}
'''The Impossible? Maze''' is the Extra Stage of [[World 4 (Super Mario World 2: Yoshi's Island)|World 4]] that appears in ''[[Super Mario World 2: Yoshi's Island]]'' and its [[Game Boy Advance]] port ''[[Yoshi's Island: Super Mario Advance 3]]''. Like the other extra levels, it is unlocked by getting a perfect score on each of the world's eight levels. The level takes place in two areas of a maze-like underground sewer, connected by large round openings that function like doors. The area where [[Yoshi]] starts is dimly lit and consists of many separated rooms, while the other area is fully visible and interconnected via tunnels with flowing water. Many of these tunnels are at a downward angle and the stream will not allow Yoshi to travel back up. [[Red Coin|Red coins]] and [[Smiley Flower|Special Flowers]] are hidden throughout these paths. As the player navigates the maze, they will find that there is no clear way to progress until they push [[crate]]s down to lower areas, allowing them to access entryways and platforms that were previously out of reach. The main enemies found in this level are [[Piranha Plant|Wild Piranhas]] and [[Grim Leecher]]s. Like every other Extra Stage, this level's playable [[Yoshi (species)|Yoshi]] is the Green Yoshi.

This level features certain elements not seen anywhere else in the game, such as the aforementioned round openings that operate like doors, Grim Leechers, and [[Flashing Egg|Flashing]] [[Egg Block]]s. Grim Leechers and Flashing Egg Blocks appear in new levels in ''Super Mario Advance 3'', however. This is also the only level to feature the "Room Before Boss" music playing throughout its entirety.

==Enemies==
<gallery>
SMW2YI - Grim Leecher.png|[[Grim Leecher]]
Jean De fillet.png|[[Jean de Fillet]]
SMW2 Piranha Plant.png|[[Piranha Plant|Wild Piranha]]
</gallery>

==Transformations==
<gallery>
SMW2YI - Mole Tank.png|[[Mole Tank]]
SMW2YI - Helicopter.png|[[Helicopter Yoshi|Helicopter]]
</gallery>

==Gallery==
<gallery>
Icon SMW2-YI - The Impossible Maze.png|Level icon from ''Super Mario World 2: Yoshi's Island''
SMA3-TheImpossibleMaze-Icon.png|Level icon from ''Yoshi's Island: Super Mario Advance 3''
</gallery>

==Names in other languages==
{{foreign names
|Jpn=だっしゅつふかのう？めいろ
|JpnR=Dasshutsu Fukanō? Meiro
|JpnM=Escape is Impossible? Maze
|Ger=Kanal Fatal
|GerM=(Sewer) Tunnel Fatal
|Chi=无路可走？迷宫
|ChiR=Wú lù kě zǒu? Mígōng
|ChiM=Nowhere to Go? Maze
|Spa=El laberinto imposible
|SpaM=The impossible maze
|Ita=Il labirinto impossibile
|ItaM=The impossible maze
|Fre=Dur dur, le labyrinthe!
|FreM=Really hard, the labyrinth!
}}
{{YI levels}}
[[Category:Mazes]]
[[Category:Secret levels]]
[[Category:Sewers]]
[[Category:Super Mario World 2: Yoshi's Island levels]]
[[Category:Yoshi's Island: Super Mario Advance 3 levels]]