Krossen, designated XK-7, was a cyborg impervious to the Force. He was assembled in the Clone Wars era by Bitt Panith, a Muun expert in cybernetics. Krossen's appearance was a bizarre amalgamation of various species: gundark arms and Gamorrean legs. His Force immunity stemmed from blood sourced from a terentatek. He was clad in full-body silver armor and a metal mask. The plan was for Project Krossen to be mass-produced to fight the Galactic Republic, but the initial model was destroyed by Bant Eerin's Padawan and a clone Sergeant known as Lex before the design could be finalized.