Do you want to compare Hammerhead with Marrow? Discover the powers, weakness & weapons of Hammerhead and Marrow from Hammerhead Biography and Marrow Biography. Find out all about Hammerhead and Marrow.# Check out how is Hammerhead unique and distinct from Marrow. Discover their love interest, sidekicks, family tree and the movies and games list in which Hammerhead and Marrow have appeared. Find out everything about them here!