Melty Molten Galaxy
- Not to be confused with Melty Monster Galaxy.
|Melty Molten Galaxy|
|How to unlock||Get 52 stars|
|Boss(es)||Fiery Dino Piranha|
|Mission(s)||The Sinking Lava Spire|
Through the Meteor Storm
Fiery Dino Piranha
Lava Spire Daredevil Run
Red-Hot Purple Coins
|Galaxy icon||The Lava Spire on the Starting Planet and the Lava Tide Planet|
The Melty Molten Galaxy is a galaxy in Super Mario Galaxy, and the last major galaxy to be unlocked in a dome. It is quite a large galaxy, made completely of lava and rock. It is situated between two stars, a red one and a light purple one, with large streams of plasma pouring from the former to the latter. There are many Launch Stars here, allowing Mario to traverse the massive planet. There are also some small planetoids around it. This is the only galaxy that has Star Chips in all three missions and the comet mission. This is one of the two galaxies to feature the theme for the Speedy and Daredevil Comets in a non-comet mission, the other being the Dusty Dune Galaxy.
The theme to this song is in the key of D Phrygian, which is used to produce melancholic and dark sounding compositions.
Note: Unless otherwise stated, all planet names are unofficial.
This area is a large disk of lava connected to the main planet. It contains a small volcano with two large platforms on either side of it. Both have various obstacles and enemies. Small steel platforms make a path between the two platforms. The volcano has a switch inside that makes the lava rise and release Star Bits.
The Volcano is a volcanic area found in the Melty Molten Galaxy. There is a Launch Star above it, but if Mario drops into the volcano, there is a ground-pound switch on a rock floor at the bottom, which causes Star Bits to appear. However, the volcano will erupt ten seconds after Mario activates the switch, so he will have to use a Sling Star at the bottom to get out. In the Purple Coin mission (Red Hot Purple Coins), there are purple coins down the sides of and inside of the Volcano Area. One coin in this mission is placed on top of a small lava ring inside the volcano, requiring a health slice to reach it, unless the player uses a good timed spin or a Long Jump.
Small Glass and Lava Planets
These are a collection of six small lava planets and three small glass planets. Mario must navigate his way through these planets via Pull Stars avoiding solar arcs that will knock him off the Pull Star path and take him into their gravity fields causing Mario to bounce across the lava surface. In the Daredevil Run, Mario needs to wait for these arcs to pass or he will be hit and lose a life.
Hardening Lava Planets
These are two hardening planets made of magma and cooled lava. One spins and the other does not. They are home to several Li'l Cinders. Beside them lies a crashed Topman UFO that serves as a starting platform; another one, tipped over and scorched, is seen later, but not used as a platform. These planets have their own gravity even though they are embedded in the main planet's surface. These UFOs are a reference to an earlier version of the game. Topmaniac was originally planned to be fought in this galaxy, but the idea was eventually scrapped.
The Formation Planets are a large rock formation surrounded by other large rock formations that are intertwined. The spire is also home to many Li'l Cinders. On top of the spire, a Power Star is incased in a large ice crystal that Mario must get to. When Mario steps on the spire, it begins to sink, so he must run up the spire or be engulfed by the lava. There is a shortcut at the beginning of the spire that leads Mario halfway up and gets him a 1-Up Mushroom.
This planet is a large stone octagon that is covered by three Thwomps, which has a 1-Up Mushroom under the third Thwomp. The core of this planet is a black hole that Mario must avoid.
U Tower Planet
This planet is a large U-shaped planet of cooled magma with stone built onto it to make it like a tower from a castle. The inside of the planet is made out of hot magma. On one side of the planet, there is a Launch Star that leads to the next planet. On the other side of the planet, there is a double-sided Bill Blaster that will try to stop Mario from continuing.
Cooled Lava Area
Lava Ball Rolling Area
This area is made up of many lava panels, four stone panels, and a humongous tunnel of lava. The tunnel has many holes in it that Mario can fall through to his death. Mario must roll on the Rolling Ball to the finish line so he could receive the Power Star. There is a shortcut Mario can take to avoid the moving lava platforms: he can jump to the stone platform with a 1-Up Mushroom. Jumping on this platform will cause the ball to slow down, so the player must roll the ball near the back edge of the platform, build up momentum, and jump. It saves the time of going over the moving lava platforms.
Steel Platform Area
This is a small area with many steel platforms and sling stars. Mario must use the Sling Stars to avoid falling into the lava and dodge the Lava Geysers. At the end of this area, there is Lumalee that Mario could decide to buy either a 1-Up Mushroom or a Life Mushroom for the battle against Fiery Dino Piranha.
Fiery Dino Piranha Planet
This planet is the home to Fiery Dino Piranha. Mario first arrives on the planet as he lands on the Fiery Dino Piranha egg and cracks it, which makes a slight crack on the egg. After Mario spins the ball at the end of the tail, the Fiery Dino Piranha breaks out of its egg and tries to attack Mario. Mario is rewarded with a Power Star after he defeats Fiery Dino Piranha.
Lava Sea Planet
This is a small rock planet with a sea of lava around it, created by feeding a Hungry Luma 80 Star Bits. The lava has a tide that reveals a network of paths when low, which Mario can advance through, but the lava covers up the path when it is a high tide. Mario must scuttle across the planet, avoiding high tides and Burn Bits to retrieve five Silver Stars and get the Power Star.
Fiery Dino Piranha (boss)
|The Sinking Lava Spire||This mission's objective is to climb the Lava Spire before it sinks.|
|Through the Meteor Storm||This mission's objective is to traverse the basic area in a meteor shower and then roll a Rolling Ball over lava platforms.|
|Fiery Dino Piranha||This mission's objective is to defeat Fiery Dino Piranha.|
|Lava Spire Daredevil Run||This mission's objective is to go through the first mission while under the effects of the Daredevil Comet.|
|Red-Hot Purple Coins||This mission's objective is to collect 100 Purple Coins.|
|Burning Tide||This mission's objective is to feed a Hungry Luma and collect the five Silver Stars.|
Concept art of elements featured in Battlerock and Melty Molten Galaxy
Names in other languages
Heru Purominensu Gyarakushī
|Hell Prominence Galaxy|
Dìyù pēnshè róngyán yínhé
|Hell Erupting Lava Galaxy|
|French (NOA)||Éruptions Infernales||Infernal Eruptions|
|French (NOE)||Gerbes infernales||Infernal sheaves|
|Italian||Galassia Passo Falso||Misstep Galaxy|
|Korean||헬 프로미넌스 갤럭시
Hel Peuromineonseu Gaelleoksi
|Hell Prominence Galaxy|
|Spanish (NOA)||Galaxia del Paseo Infernal||Infernal Stroll Galaxy|
|Spanish (NOE)||Galaxia Paseo Infernal||Infernal Stroll Galaxy|
- This is the only galaxy to feature the Rolling Ball but not have the word "Rolling" in its name, due to the Rolling Ball being a minor part of the galaxy, rather than the central focus.
- Game Developer's Conference 2007 Super Mario Galaxy Trailer 
|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.|