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Pryosphere Door Bug

A screenshot of the game-breaking glitch occurring

The Pyrosphere door glitch, also known as the Sector 3 door glitch, is a potentially disastrous bug in Metroid: Other M involving a locked door found in the basement of the Desert Refinery, which completely halts progress, leaving the player unable to continue without starting over or using an old game save taken before the bug occurred. Consequently, copying the save files to the other does not solve the issue.[1] Nintendo later acknowledged the glitch and revealed its cause.[2][3] If the player encounters this glitch but do not wish to start over, a fixed, non-glitched save file of this door for the US version is available for download. 


In the room after a large area where Samus was chased by the Vorash, she must battle a group of Zebesians and Novas before receiving authorization to use the Ice Beam from Adam. After that, Samus will reach a long corridor which locks her inside. To unlock the doors, Samus must defeat a group of Dessgeegas. Once all Dessgeegas are defeated, the doors will be unlocked.

Should the player, for any reason, backtrack at this point to the room where Samus first used the Ice Beam, the door in the basement of the Desert Refinery will remain locked permanently, and the player will not be able to continue on further in the game. The door is located at the basement exit after the three Grapple Points.[2]

To avoid the glitch, the player must exit the room via a newly unlocked door near a tall cliff down at the end of the corridor, and proceed as normal before doing any backtracking to any previous rooms.[2]

Pyrosphere door glitch Metroid dot com notice notice.

Nintendo has set up a program that allows those affected by the glitch to send in their save data on an SD card so that their data will be fixed.[2][4][5]


  1. ^ Jim Reilly (2010-09-16). No Fix in Sight For Metroid Bug. IGN. Retrieved on 2010-09-18.
  2. ^ a b c d Nintendo of America. Metroid Other M - Locked Door In Sector 3. Nintendo of America. Retrieved on 2014-07-21.
  3. ^ 『METROID Other M』セクター3で先に進めなくなる症状についてのお知らせ (Japanese). Nintendo. Retrieved on 2011-06-16.
  4. ^ Nintendo Taking Care Of Metroid: Other M Bug. Kotaku. Retrieved on 2010-09-27.
  5. ^ Nintendo Exterminating Metroid Bug. IGN (2010-09-27). Retrieved on 2010-10-23.

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