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This article is about the object that appears in Super Mario Galaxy 2. For the object that appears in Wario Land 4, see vortex.
A portal that has just been created by a Grand Star in World 3, following the defeat of Megahammer in Bowser Jr.'s Fearsome Fleet
“Through space and time to an unknown world we go! I'm jiggling just thinking about it! Ready, Captain?”
Lubba, Super Mario Galaxy 2

A portal[1] is a powerful cosmic gateway found solely in Super Mario Galaxy 2. Portals are greenish-white in color and round in shape, and they allow Starship Mario to transcend the boundaries between all seven worlds found in the game. A portal is created via the power of a Grand Star. When Mario returns to Starship Mario after having defeated Bowser, Bowser Jr., or one of Bowser Jr.'s henchmen or machines in one of the six boss galaxies in the game, the Grand Star that he returns with immediately shoots out into space directly in front of Starship Mario and explodes into a portal. Access to the next sequential world in the game is then granted.

A portal as seen from the World Map of World 2

Originally, the first time a new portal appears in the game, a short cutscene plays, in which Lubba talks to Mario before he pilots Starship Mario directly into the portal, thereby advancing to the next world. After each cutscene, the portals that are created remain at the beginning and end of each world (with the exception of World 1 and World S, which have portals only at the end and the beginning, respectively), allowing the player to freely travel between all unlocked worlds whenever they want. Alternatively, the player could also use the Grand World Map, which, though the portals are not physically shown when the map is in use, also requires the physical presence of a portal to allow Starship Mario to travel between worlds quickly.

Names in other languages[edit]

Language Name Meaning
Japanese 次元の扉[2]
Jigen no Tobira
Dimensional Door
Chinese 時空大門[3]
Shíkōng dàmén
Time Gate
Italian Varco Spazio-Temporale Space-Time Portal


A portal as seen from Starship Mario
  • If the players go to Starship Mario while they are in a space before the portal to the next world, they can see the portal floating in the sky. The same applies when Starship Mario is in a space after the portal to the last world, but this time the portal can be seen behind Starship Mario.


  1. ^ "A portal to the next world opened up!" – In-game text, Super Mario Galaxy 2
  2. ^ Official Japanese Super Mario Galaxy 2 website
  3. ^ Official Hong Kong Super Mario Galaxy 2 website