Kung Zhu Special Forces Hamsters - Rocko"o These Special Forces Kung Zhu hamsters are ready to protect the Zhu-niverse! The Delta Force - Sergeant Serge, Rock"o, Stonewall and Rivet reporting for duty! Each have their own unique personalities and phrases. Take a look at the Kung Zhu armour and vehicles which are compatible with all the Kung Zhu Hamsters.