"Bifuricating energy bolts."
The Voranj fires a medium-to-long range burst of green arcing energy. It is useful for firing around walls or other obstacles.
The projectile starts as a single wide beam, and splits many times in a bifurcating/branching pattern. Each time the energy bolt splits, the damage is split between the branches as well.
The Voranj is found in the upper-left portion of Zi (just below the top-left save room). The player must navigate a Drone-only section to obtain it.
You can also obtain this weapon after you get the drone teleport using Trace.
The video below shows how to get through this section to obtain the Voranj.