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