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