Big bomb cannon

Grande Boom is a device that appears in Paper Mario: The Thousand-Year Door. It is located in the Fahr Outpost under a huge underground chamber and is made fully operational. When Mario goes there in hopes of finding a way to the Moon, he is informed that he must seek out Goldbob and General White if he wished to use the cannon. After he locate them, Mario speaks to the Fahr Outpost Mayor once more and Grande Boom is activated. Loaded with tons and tons of Bob-ombs, Mario hops inside and is shot to the Moon, his final destination before The Thousand-Year Door.