Crafting: 1000 pixels, 30 Impervium bars, 15 Rubium bars, and Rho Mech Tech at Robotic Crafting Table. CONTROLS. F: Activate/deactivate tech [10 E/second upkeep] Primary Fire: Armmounted heavy machine gun. Recoil/fire cone is reduced while crouching, increased while in midair. Alternate Fire: Graviton Hook, Allows telekinesis of enemies at a ...