Get to the Gadgetron HQ is a mission in Ratchet & Clank, taking place at the Gadgetron Headquarters on planet Kalebo III. After Ratchet failed to stop the Deplanetizer from destroying Novalis, he returned home to Veldin. However, Clank persuaded him to return to the Galactic Rangers to stop Alonzo Drek from destroying another planet. Upon entering a Class-g Star Jumper, he heard out Elaris' plan, which involved using a Hologuise to sneak aboard the Deplanetizer. In order to obtain it, Ratchet and Clank needed to travel to the Gadgetron Headquarters on Kalebo III, though upon reaching said location, they found it overrun by the blarg.
The Sheepinator is available at the Gadgetron vendor for 40,000 bolts. If you have not already purchased the Glove of Doom, purchase it now, and purchase the Sheepinator later once you can afford it. Spend all Raritanium and then move on.
Head down the bridge to find several blarg elite commandos and bladeballs. Both enemies can be defeated with the Buzz Blades with added firepower from Mr. Zurkon, though a combination of other weapons can also be effective. As you head down the path, blarg bombthrowers will also appear along with a blarg armored transport; you do not need to destroy the dropship yet, but do destroy the bombthrowers with ranged weapons. Hit the green button and head inside the lobby.
The path here forks into two paths, both of which involve a mission. Follow the path on the right for the story mission "Find the Focus Lab"; follow the left path for the optional mission "Ride the grindrail". Since "Ride the grindrail" involves a very short detour, you may wish to complete this first, and continue with "Find the Focus Lab" afterwards.