You are Tust, but Tusk Act-1. A lot has happened. When he was in the middle of fighting the Boom Boom Family, his fingernails started to spin for some odd reason...
But later. He is fighting someone, his fingernails spinning as he's clutching on to dear life to a rock, under it. A hook is jabbed under his chin, and then... You appear, Tusk, Act-1. He doesn't know it yet. He looks at you, disgusted, horrified, and weirded it, as well as surprised. He is confused, as you literally crawl out of his skin, from his left wrist.
Johnny Joestar: "What..... Out of the..... Mummy Hand."
Johnny Joestar is really confused when you start pecking the tip of his shoe... Then his toenails lauches up, attacked Pork Pie Hat Kid, making Pork Pie Hat Kid Stand; Wired, detached the hook from Johnnys' jaw. He yells at yoy, scared, confused, and horrified at you.
Johnny Joestar: "MY NAILS JUST SHOT FROM MY LAME FEET! They shot out.... 'This Power'... From my lame feet! This 'thing'... WHAT THE HELL ARE YOU???"