The passage tunnel in the Tundra Sector is a building which makes it possible to travel to another sector.

It can be reached by meeting the passage tunnel requirements of the Rock Sector's passage tunnel. These are a rating of at least 3 and 1000 energy crystals for the safety of the trip.

The passage tunnel requirements for the next sector, which is the Arctic Sector, is a rating of 5. However, there is another way for passing to the Arctic Sector by completing all tasks from Super's Obelisk before.

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