Editing Boo in a Box

|image=[[File:Boo in a Box 2.png|200px]]

'''Boo in a Box''' is the hidden sixth mission of [[Deep Dark Galaxy]] in ''[[Super Mario Galaxy]]''. This mission can be done during any standard mission, though selecting it takes the player to the first mission, [[The Underground Ghost Ship]].

[[File:Boo in a Box 1.png|thumb|The hidden [[Launch Star]].]]

The player must make their way to the bottom of the underwater cave and find a [[Green Shell]]. Launching the Green Shell at one of the [[Mikey Mine]]s surrounding the broken ship mast will cause them all to explode, revealing a [[Launch Star]]. The Launch Star will send the player inside of a floating box with a single [[Big Boo|Atomic Boo]] and a [[Ground Urchin]] inside. Flipping the arrow to change gravity until the player is on the wall to the right, the player will find a [[crystal (Super Mario Galaxy)|crystal]] blocking a hole. Shattering the crystal will let in light and the player then has to lure the Atomic Boo into the light, causing it to be defeated and dropping the [[Power Star]].  

SMG Asset Model Big Boo.png|[[Big Boo|Atomic Boo]]

CyanCrabber.jpg|[[Crabber]]s (turquoise)

GiantGringill.png|[[Big Gringill|Giant Gringill]]

SMG Water Cave.png|[[Whirlpool]]s

RedUrchins.png|[[Ground Urchin]]

SMG Underwater Mine Artwork.png|[[Mikey Mine]]s

|Jap=テレサの{{ruby|秘密|'''ひみつ'''}}の{{ruby|部屋|'''へや'''}}

|JapM=Boo's Secret Room

|FreA=La Chambre Secrète de Boo

|FreAM=The Boo's Secret Room

|FreE=La chambre secrète des Boo

|FreEM=The Boo's Secret Room