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Not to be confused with Digga-Leg.
SMG Megaleg and Moon Model.png
Galaxy Bowser Jr.'s Robot Reactor
Mission(s) Megaleg's Moon
Dome Terrace
Star given A Grand Star icon from Super Mario Galaxy.
“Wahahaha! You made it! But I won't even need my dad's help to take care of you! Go at 'em, Megaleg! Stomp 'em with the power of your Grand Star!”
Bowser Jr., Super Mario Galaxy

Megaleg is a boss in Super Mario Galaxy. It is a gigantic mechanical construct with a vague resemblance to a Snifit. It is found in Bowser Jr.'s Robot Reactor, and is owned and possibly commanded by Bowser Jr.

The concept of climbing atop and moving on a large being was originally intended to be used in the final fight against Ganon in The Legend of Zelda: Ocarina of Time, but this was scrapped due to the fact that one would be unable to see Ganon while atop him. However, it was later reused in Super Mario Galaxy, much to the excitement of the development team.[1] Megaleg underwent several changes prior to the release of Super Mario Galaxy. In the E3 2006 demo of the game, there was nothing in its cage. The earliest version of Megaleg was labeled "BossCrab", which had a different body design, no nose or mouth, four legs, and a half oval shaped head.[2]


Bowser Jr.'s Robot Reactor
Megaleg standing on the Robot Reactor.

Megaleg is incredibly large and lives on a planet just big enough to hold it. It has three long legs, like a tripod, and each leg has various tricks and traps designed to trip Mario up. It has fly-like eyes with huge lights beaming out of them. On top of Megaleg's head is a red cage with a rotating lighthouse-like light on top that contains a Grand Star. Megaleg is much bigger than Digga-Leg, a similar boss encountered in Super Mario Galaxy 2.


The top of Megaleg's head
Mario being followed by a Bullet Bill on Megaleg's head.
Megaleg exploding
Megaleg explodes after Mario frees the Grand Star.

When Mario enters Bowser Jr.'s Robot Reactor, Megaleg is positioned on the bottom of the Robot Reactor. When Mario uses the Launch Star on the Starting Planet to reach the Robot Reactor, Bowser Jr. appears and orders Megaleg to attack Mario. Megaleg mainly attacks by consistently firing multiple Bullet Bills from various locations on its head, legs, and underbelly. It also tries to stomp on Mario while he's on the Robot Reactor. Mario must jump on one of its three huge feet and climb up its leg, avoiding Bullet Bills along the way. When Mario reaches Megaleg's head, he has to lead a Bullet Bill into the larger cage surrounding the red cage, after which a barrier forms around the red cage and more Bullet Bills are fired. Mario must then lead another Bullet Bill into the red cage to release the Grand Star trapped inside and defeat Megaleg.

Super Mario Galaxy Trading Card description[edit]


A Grand Star is at stake in the battle against Megaleg, so Mario knows it won't be easy. With its flylike, light-beam eyes and three huge mechanical legs, this boss lives on its own planet in Bowser Jr.'s Robot Reactor. To defeat Megaleg, confuse the monster's own Bullet Bills so that they slam into its head and destroy it.


Additional names[edit]

Internal names[edit]

Game File Name Meaning

Super Mario Galaxy ObjectData/TripodBoss.arc TripodBoss Tripod Boss
Super Mario Galaxy StageData/ObjNameTable.arc/ObjNameTable.tbl 三脚ボス (Sankyaku Bosu) Tripod Boss

Names in other languages[edit]

Language Name Meaning
Japanese メガレッグ

Chinese 机械巨腿[3]
Jīxiè Jùtuǐ
Mechanical Huge Legs

French Mégapod
German Megabein
Italian Tripodobot
From "tripode" (tripod) and "robot"
Korean 메가레그

Spanish (NOA) Megatrípode
Spanish (NOE) Megatrípode
Trípode Grandullón (Megaleg's Moon name only)
Burly Tripod


  • In a Nintendo Power preview for Super Mario Galaxy 2, it was stated that Megaleg would return.[4] This was later proven false, however, with Digga-Leg appearing instead.
  • There is a glitch whereby the player can access Megaleg's planet without triggering the cutscene or battle.[5]


  1. ^ Nintendo Power Issue 225, page 64.
  2. ^ TCRF. Super Mario Galaxy/Unused Models. The Cutting Room Floor. Retrieved March 5, 2020.
  3. ^ 真キノピコ (June 20, 2018). スーパーマリオギャラクシー Part1 ワールド1 テラス. YouTube. Retrieved March 5, 2020.
  4. ^ Nintendo Power Issue 251, page 37.
  5. ^ A+Start. (March 6, 2015). Super Mario Galaxy Glitches - Son Of A Glitch - Episode 39. YouTube. Retrieved February 15, 2020.