This weapon can only be used by Aris Boch, and has several functions. The first ray is rather destructive, having effects similar to the staff weapon. It is shot by the lower cannon (second picture).

But this weapon also has a paralyzing ray (third picture), that stuns the target for some time.

The last known functionnality is a toxic gas, that would kill every human being around in a few seconds. It can be released by simply pressing a button.

To conclude, let's say that, for visual effect, this weapon was made up with a TER and two or three gizmos sticked onto it.