Mental Dynamo is a structure used by Epsilon Headquarters to provide permanent barrier protection for several vital objects. The Epsilon HQ has 10 of them in total.
- 9 Mental Dynamos appear in Withershins. They are used for protecting Ganzir Defenders and every structures in the core base including the Mental Omega Device. After the Allies destroyed part of them, those Ganzir Defenders at outer area will lose barriers and will be destroyed by the ally's Lionheart Bombers.
- The final Mental Dynamo appears in Hamartia, deep in the underground. A permanent barrier surrounds itself, so only Siegfried can destroy it with his long-range attack, to deactivate the protection on every structure in the core base.