Rumblebump Volcano

Rumblebump Volcano is a place Luigi visits in Paper Mario: The Thousand-Year Door to retrieve a marvelous compass piece. He tells Mario that he met a giant stone-guardian with a weak spot at his head looking like a ruby, and that he threw his Blooper friend at it, and WHAM! The guardian was defeated. When Mario asks the Blooper, though, he finds out that Luigi really missed and that the Blooper ended up in the magma...