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