Bob and Melvin Cylinder are brothers first worked at the USS Geometry with Jimmy, Alvin, and Biker. Biker didn't like them at first because all they do is sing and eat, and thought they were crazy. Charlie then met them and after hearing Bob say he'd like to eat a whole planet, he told the crew to send the brother cylinders in the space pods so they could eat the candy corn meteor and save the ship. They were then congratulated and Melvin found the electric plug for the ship's power and everybody was happy of what they did.