Boo's Boneyard Galaxy is a ghost-themed galaxy in Super Mario Galaxy. It is unlocked by feeding the Hungry Luma outside of the Gate 1200 Star Bits.
Planets/areas
NOTE: Unless otherwise noted, all planet names are unofficial.
Starting planet
This planet is shaped like a giant skull and is surrounded by bones. If Mario spins on the eyes of the skull, he will get three Star Bits. There is a single pipe which takes Mario to the Spooky Speedster Planet. The background environment seen in this area is based upon that from Ghostly Galaxy.
Spooky Speedster planet
This planet is a large maze-like race course where Mario races the Spooky Speedster for the second time. Through the underground tunnels, there is a river of flowing ghosts, as well as so-called springs, fans, and many skeletons (after the finish line).
Missions
This galaxy contains only the following mission:
| Level | Image | Summary |
|---|---|---|
| Racing the Spooky Speedster | 
|
This episode's objective is to race against the Spooky Speedster. |
Names in other languages
| Language | Name | Meaning | Notes |
|---|---|---|---|
| Japanese | デスプロムナードギャラクシー[?] Desu puromunādo gyarakushī |
Death Promenade Galaxy | |
| German | Schattenpromenade-Galaxie[?] | Shadow Promenade Galaxy | |
| Italian | Galassia Osso Duro[?] | Hard Bone Galaxy | |
| Korean | 데스 본야드 갤럭시[?] Deseu bonyadeu gaelleoksi |
Death Boneyard Galaxy | |
| Spanish (NOA) | Galaxia del Paseo Letal[?] | Lethal Stroll Galaxy | |
| Spanish (NOE) | Galaxia Paseo Letal[?] | Lethal Stroll Galaxy |