O.V.U.M.'s Fortress is an unofficial name for the fortress at the end of Gradius Gaiden.
Ps gradius gaiden 491

O.V.U.M.'s Fortress exploding


O.V.U.M.'s Fortress is the home of the invading Dark Nebula forces. It is located at the center of this dangerous nebula.


  • O.V.U.M.'s Fortress looks like a mechanical Brain.


Gradius Gaiden

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