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E.G.O equipment (Short for Extermination of Geometrical Origin) is a recurring theme in Project Moon media. They can be used by characters in order to enhance their fighting prowess. They can take the form of weapons, clothes, items, or locations.
E.G.O may manifest in two manners:
- Extracted from abnormalities (taking a similar appearance from them)
- Manifested through intense feelings and determination
Notable E.G.O equipment includes Gebura's Mimicry (E.G.O extracted from the abnormality Nothing There) and armour (Her own manifested E.G.O).
Prolonged usage of extracted E.G.O one is not fully qualified to use or with low levels of sanity can result in E.G.O corrosion. This results in the user transforming into a form similar to the abnormality the E.G.O was originally extracted from. As shown with Heathcliff, a personal E.G.O is also capable of corroding, but as it is personal to the user rather than extracted from an abnormality, it does not change appearance. Instead, it appears to herald Distortion.