Jack Hammer

Jack Hammer is a one-time character from the Disney XD series Randy Cunningham: 9th Grade Ninja. This giant robot, built by Willem Viceroy, serves as the primary antagonist of the episode "Weinerman Up".

Role in the episode
Jack Hammer was made to look like a muscular man in overalls, steel-toed bots, and a hard hat. He wielded a sledgehammer that could convert into a jackhammer. Jack's internal mechanisms were so complex that they were hooked up to a video game called Jack Hammer Hates Norrisville.