For other uses of the term, see Mount Mobius (disambiguation).

Mount Mobius[1] is a location that appears in the Sonic the Hedgehog series. It was a mountain located on Planet Mobius that Dr. Robotnik established his Veg-O-Fortress on to conquer Mobius. After Sonic the Hedgehog destroyed the Veg-O-fortress however, Mount Mobius sunk into the sea.


Most of Mount Mobius is unknown. From the outside however, it is a barren and dark mountain that contains a volcano.[2] It is also known that it is located near the sea.


Sonic the Hedgehog Spinball

In Sonic the Hedgehog Spinball, Dr. Robotnik built the Veg-O-Fortress on Mount Mobius, from where be planned to robotizatize all beings on Planet Mobius. Using the lava pumping through the mountain, Robotnik was able to harness the volcanic energies to power his fortress's generators, although he had to use Chaos Emeralds to keep the mountain's volcano stable or it would explode.[2][3]

Eventually, Sonic and Tails used a a plane to approach Mount Mobius, only for the Veg-O-Fortress's artillery cannons to start firing at them. This made Sonic fall onto the sea near Mount Mobius, though he managed to make his way into the Toxic Caves, the lowest point of the Veg-O-Fortress. From there, Sonic climbed up through the fortress on the inside, collecting Chaos Emeralds along the way to destabilize Mount Mobius's volcano. Eventually, he also destroyed the Veg-O Machine, which caused the entire fortress to crumble. In an attempt to escape, Robotnik tried to fly away in a rocket ship, only for his ship to be destroyed by Sonic. As Sonic and Robotnik then fell from the sky, Sonic was rescued by Tails in his plane, while Dr. Robotnik fell into Mount Mobius as it sunk into the sea.

Points of interest

In other media

Adventures of Sonic the Hedgehog

In the Adventures of Sonic the Hedgehog television series, Mount Mobius is the tallest mountain on Mobius. Dr. Ivo Robotnik once used Big Daddy to install a laser on top of the mountain, with which he could control the people of Mobius with. However, Sonic managed to deactivate the laser.

Sonic the Comic

Archie Comics

Main article: Mount Mobius (Archie)


  1. 1.0 1.1 Sonic the Hedgehog Spinball (Sega Mega Drive) United States instruction booklet, pg. 2.
  2. 2.0 2.1 Sonic the Hedgehog Spinball (Sega Mega Drive) United States instruction booklet, pg. 7.
  3. Sonic the Hedgehog Spinball (Sega Mega Drive) United States instruction booklet, pg. 16.
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