Rubenstein's Monster
Combo A
RUBE-ADYNE MK.II
RUBE-ADYNE MK.IICombo B
RUBE-ADYNE Prototype
RUBE-ADYNE PrototypeEffect
If the player also has RUBE-ADYNE Prototype , the two guns are combined to form Rubenstein's Monster .
This synergy isn't granted with 
Lich's Eye Bullets .