|Location||Bowser Jr.'s Robot Reactor|
|Game||Super Mario Galaxy|
|<< Directory of missions >>|
- “Something very important is at stake in the battle against Megaleg, a giant cannon battery with mechanical legs that lives on its own Moon in Bowser Jr.'s Robot Reactor. Defeating this boss requires Mario to coax Megaleg into fireing its own Bullet Bills at itself.”
- —Super Mario Galaxy Trading Card Description
Mario initially lands on the Starting Planet. There are three cages on the planet that must be hit by Bullet Bills and a couple of Goombeetles. Mario must get a Bullet Bill to a cage that contains a Launch Star leading to the Robot Reactor, where Megaleg is fought. Mario starts on the ground and Megaleg blasts Bullet Bills and tries to step on him to defeat him. There are multiple cages on the other side of the planet that a Bullet Bill can break open. If Mario runs up Megaleg's leg when it is on the ground, he reaches an area where three Bullet Bills are blasted at once. After dodging those Bullet Bills he must then move on to a turning gear area where he must hop the gears. Finally, he reaches Megaleg's head where there is a cage and a Bullet Bill launcher. Mario must destroy the cage to open up another cage, this one being regenerative, that he must destroy and a third cage in the middle of that one. Once Mario destroys all the cages, Megaleg explodes and Mario falls to the ground with the Grand Star.
Names in other languages
Sanbon-ashi no dekai yatsu!
|The Huge Dude with Three Legs!|
Zhǎng sān tiáo tuǐ de dà jiāhuǒ!
|The Giant Guy with Three Legs!|
|French (NOA)||La Lune de Mégapod||Megaleg's Moon|
|French (NOE)||Le gros truc à trois pattes||The Big Thing with Three Legs|
|German||Der dreibeinige Riese!||The Tripodal Giant|
|Italian||Il Gigante a Tre Piedi||The Three Feet Giant|
|Korean||다리 셋 달린 커다란 녀석!
Dari set dallin keodaran nyeoseok!
|Three-Legged Giant Guy!|
|Spanish (NOA)||La Luna de Megatrípode||Megatripod's Moon|
|Spanish (NOE)||El trípode grandullón||The burly tripod|
|Missions and galaxies in Super Mario Galaxy|
|Area||Main galaxies||Boss galaxies||Hungry Luma galaxies|
|Planet of Trials||—||—|
|Center of the universe||—||—|
|* Mission only available when a Prankster Comet is in orbit.|