Kahgarak The Kahgarak is a type of Visorak from BIONICLE . This set was a combiner model using 8743 Boggarak and 8747 Suukorak . Its instructions were split between these sets . History . Kahgarak , like all the other Visorak , were created by the Makuta Chirox on an island south of Nynrah that was soon renamed Visorak , after the spider - like creatures . Being part of the Brotherhood of Makuta ' s armies , they were led by Sidorak and Roodaka , king and viceroy of the Visorak hordes , after they were conquered by Makuta Gorast . The hordes invaded a number of islands , mutating native Rahi beasts in the process . At Metru Nui , the Kahgarak often led smaller Visorak units on hunts and served as guards for the Coliseum and other important strategic sites during the occupation of Metru Nui . When Sidorak and Roodaka discovered that the Metru Mantis were attacking the horde , the Kahgarak were charged with the elimination of the creatures . During the occupation of Metru Nui , Rahaga Bomonga and Toa Hordika Whenua encountered two Kahgarak battling in the Archives . During the fight , one Kahgarak unleashed a Rhotuka spinner at the other , causing the other spider to be sent into the Field of Shadows and dragging the Rahaga and Toa into the field as well . The duo then followed the same Kahgarak out of the Field of Shadows , where they found themselves in the hands of Sidorak and part of the horde . A Kahgarak summoned the Zivon to devour them but a battle ensued when the other Toa and Rahaga arrived . The same Kahgarak decided to send the Tahtorak into the Field of Shadows , as it was fighting the Zivon . However , Krahka managed to shove the Zivon at the Tahtorak , causing the banishment of all three to the Field . Toa Onewa killed this Kahgarak in anger . Roodaka rode on top of a golden Kahgarak during the Toa Hordika ' s battle against the horde . However , like all other Visorak , the Kahgarak left Metru Nui after Vakama disbanded the horde . All of the Visorak were summoned to the island of Artidax due to the Heart of the Visorak ' s effect . Once there , a volcanic eruption was triggered by the Order of Mata Nui , wiping the Kahgarak and the other Visorak from existence . Once Teridax gained control of the universe , he recreated the Kahgarak along with the other Visorak , and they now enforce his law throughout the universe . Abilities and Traits . Kahgarak came in a wide variety of sizes and colours , but the majority are considerably larger than normal Visorak and primarily have a blue or gold shell . Kahgarak have natural Rhotuka launchers which can fire Rhotuka that can open a portal to the Field of Shadows . Anything that the Rhotuka collides with will be sucked into the dimension . The Kahgarak often use their Rhotuka to unleash the Zivon and to return it to the Field of Shadows . This unique Rhotuka power also makes them feared opponents . Some Kahgarak are also fitted with projectile launchers for use in sieges . Their large size make them ideal weapons platforms . Set Information . A blue and white Kahgarak can be built out of Visorak sets Boggarak and Suukorak , with the instructions being available in the two sets . It features a Rhotuka Launcher on its back and a silver Rhotuka spinner . Pressing down on its head causes its mandibles to squeeze together . A special edition gold and dark blue Kahgarak was later released with the 2005 Battle for Metru Nui playset . This version featured an exclusive gold - colored Vohtarak body . Pressing down on the head caused its mandibles to squeeze together , and its back featured a Rhotuka launcher that could fire the set ' s glow - in - the - dark or silver Rhotuka spinners . The Kahgarak could also launch the mini - Visorak from its underside by pulling the Visorak back along a beam . It was labeled as the " Great Visorak " on the Battle for Metru Nui box . Another gold and dark blue Kahgarak came in the Tower of Toa playset of the same year and featured a golden Kraahkan as a purely structural component of its head . Its underside was fitted with a blunt shooter which could be fired by pressing down on the Kahgarak ' s back .