The Key to the Shack is a key item in EarthBound that opens the path to the cave where Titanic Ant awaits. It is owned by and obtained from B.H. Pirkle after beating Frank Fly and Frankystein Mark II in the arcade in Onett. This key item is the second to be obtained by Ness, prior to the events in Onett. Upon using this key, the shack will remain open. It can be stored via Escargo Express after it is used.