The Kripke Krippler, known as the Kwipke Kwippwuh by its creator, Barry Kripke, is a remote-controlled fighting robot that fought and won against M.O.N.T.E., the robot built by Howard Wolowitz. It has destroyed a Chevrolet Cavalier, as Kripke mentions in an off-screen video in the episode.
The Kripke Krippler engages and eventually destroys M.O.N.T.E. while under Sheldon's control in an unofficial "street fight". The KK is armed with several different weapons, including a blowtorch-like flamethrower, a horizontal Spinning Bar at the front that can rotate at 3400rpm and "cut thwough stee-w wike it was wubber!", spiked rollbars across its chassis, and on the back, a pneumatic-driven arm lined with saw blades and a wide hammer with spikes.