Challenge Node

It has been requested that more images be uploaded for this article. Remove this notice only after the additional images have been added. Specifics: Image of the gates to the Gauntlet and Cholesteroad when unlocked in the Nintendo DS version, as well as screenshots of the gates locked and unlocked in the Nintendo 3DS remake.

Not to be confused with Challenge Mode.

Challenge Node
Mario and Luigi at the locked entrances of the Gauntlet and Cholesteroad within the Challenge Node
First appearance	Mario & Luigi: Bowser's Inside Story (2009)
Latest appearance	Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey (2018)
Greater location	Bowser's body
Inhabitants	Emoglobins

“Have you two come to test your limits in the Challenge Node?”

—Emoglobin, Mario & Luigi: Bowser's Inside Story

The Challenge Node is an area found inside Bowser's body in Mario & Luigi: Bowser's Inside Story and its 3DS remake, Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey. It is, apparently, located in Bowser's spleen. This area is completely optional and does not need to be entered to complete the game.

It is one of the first areas available to Mario and Luigi in Bowser's body after they clear Trash Pit. The first time Mario and Luigi enter the area, and when a new challenge becomes available, the bros. will be greeted and talked to by an Emoglobin. In the remake, an Emoglobin will also inform Mario and Luigi if a new challenge is available when visiting Toad Square. Its icon on the map of Bowser's body looks like an opened Nintendo DS with two dots of eyes on the top screen and one of mouth in the bottom, which the Emoglobins in the area also resemble.

Challenges

Here, Mario and Luigi can participate in two challenges and gain items (not included on the page):

• Gauntlet - Here, the Mario brothers can fight X Bosses, which are optional bosses that are similar to bosses they have fought before, but more tough. One of these bosses, Bowser X, is the toughest boss in the game. In the remake, giant battles can be re-fought here at a faster-paced difficulty. This is unlocked after defeating Durmite.
• Cholesteroad - Here, Mario and Luigi use the Special Attacks they have learned to fight the same enemies until the player messes up. This is unlocked after defeating the Scutlet.

There is also a block that works the same way a Rally Block does here. If it is hit 99 times in a row, the player can double their Coins whenever they want, but once cleared, it cannot be repeated:

Item	Location	Image ()	Image ()
-> Total Coins multiplied by 2	In the part above the Gauntlet and Cholesteroad doors.

Area map

Area map

Names in other languages

Click an area to open the relevant article.

Language	Name	Meaning	Note(s)	Ref.
Japanese	チャレンジホール Charenji Hōru	Challenge Hall		[?]
French (Canadian)	Colisée des défis	Challenge Coliseum		[?]
French (European)	Hall des défis	Challenges' hall		[?]
German	Wettkampfhalle	Competition Hall		[?]
Italian	Salone delle Sfide	Challenges Hall		[?]
Korean	챌린지 홀 Chaellinji Hol	Challenge Hall		[?]
Spanish (Latin American)	Nodo Desafío	Challenge Node		[?]
Spanish (European)	Salón Desafío	Challenge Hall		[?]