3=D
I left it purposely vague so that the player can have more variation in specific alterations, like in the Geass form. In the Geass form you can have the Sigil in the left, right or both eyes. In the source material, having it in both eyes indicated that your Geass reached its most powerful state, in the Nexus, it is just aesthetics. It is the same with the Diclonius Form, aesthetics.
I want you to look at both forms separately, then together as an amalgam form. Then, you can congratulate Sylent on a deadly form.
Gentle Fist Vectors. Scary stuff.