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