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Mattermouth artwork
First appearance Super Mario Galaxy 2 (2010)
Latest appearance Mario Party: Island Tour (2013)

Mattermouths are enemies that first appear in Super Mario Galaxy 2. They resemble the skulls of Dry Bones, as well as Bone Dragons. Their name appears to be a pun on "motormouth", as well as a reference to dark matter.


Super Mario Galaxy 2[edit]

Mario runs past a Mattermouth in Super Mario Galaxy 2.
Mattermouths in Super Mario Galaxy 2.

In Super Mario Galaxy 2, Mattermouths are found in places such as Haunty Halls Galaxy and Bowser's Lava Lair. They eat away part of the ground, which regenerates after a few seconds. If Mario falls into the holes in the ground created by the Mattermouths, he loses a life. Mario cannot destroy them, but he can stop them temporarily by stomping on their heads, which turns them around, causing them to begin eating the ground in the opposite direction. If Mario is attacked by a Mattermouth, he loses one wedge of his Health Meter.

Mario Party: Island Tour[edit]

Mattermouths as seen in the minigame, Tragic Carpet Ride in Mario Party: Island Tour.
Mattermouths as seen in Mario Party: Island Tour.

Mattermouths reappear in Mario Party: Island Tour in the minigame Tragic Carpet Ride. They eat up the carpet that the players are standing on, while the players try not to fall. Players that touch a Mattermouth are stunned.

Additional names[edit]

In the files for Super Mario Galaxy 2, Mattermouths are known as "BakuBaku", which may mean that they were initially based on Cheep Chomp. Additionally, within the game's "ObjNameTable" file, there is a removed "BossBakuBaku" entry, suggesting that there was originally going to be a boss version.[1]

Internal names[edit]

Game File Name Meaning

Super Mario Galaxy 2 ObjectData/BakuBaku.arc BakuBaku Transliteration of below
Super Mario Galaxy 2 SystemData/ObjNameTable.arc/ObjNameTable.tbl バクバク (Baku Baku) Japanese onomatopoeia for chomping sound

Names in other languages[edit]

Language Name Meaning
Japanese ガツガツ
Japanese onomatopoeia for eating rapidly
French Décophage From "découper" (to cut up) and "φάγος" (phagos, "eater" in Ancient Greek)
German Vakuumtrocken Dry as a Vacuum
Italian Gnammo From "gnam" (yum) with masculine suffix "-o"
Korean 아귀아귀
Agwi Agwi
Repetition of "아귀" (agwi, monkfish)
Russian Скелетопасть
From "скелет" (skelet, skeleton) and "пасть" (past, jaw)
Spanish Mascasuelo Portmanteau of "mascar" (to chew) and "suelo" (floor)


  1. ^ TCRF. Super Mario Galaxy 2/Removed Objects. The Cutting Room Floor. Retrieved June 3, 2022.